When the people of Khaibar dislocated `Abdullah bin `Umar's hands and feet, `Umar got up delivering a sermon saying, "No doubt, Allah's Apostle made a contract with the Jews concerning their properties, and said to them, 'We allow you (to stand in your land) as long as Allah allows you.' Now `Abdullah bin `Umar went to his land and was attacked at night, and his hands and feet were dislocated, and as we have no enemies there except those Jews, they are our enemies and the only people whom we suspect, I have made up my mind to exile them." When `Umar decided to carry out his decision, a son of Abu Al-Haqiq's came and addressed `Umar, "O chief of the believers, will you exile us although Muhammad allowed us to stay at our places, and made a contract with us about our properties, and accepted the condition of our residence in our land?" `Umar said, "Do you think that I have forgotten the statement of Allah's Apostle, i.e.: What will your condition be when you are expelled from Khaibar and your camel will be carrying you night after night?" The Jew replied, "That was joke from Abul-Qasim." `Umar said, "O the enemy of Allah! You are telling a lie." `Umar then drove them out and paid them the price of their properties in the form of fruits, money, camel saddles and ropes, etc."

The Prophet sent us as an army unit of three hundred warriors under the command of Abu 'Ubaida to ambush a caravan of the Quraish. But we were struck with such severe hunger that we ate the Khabt (desert bushes), so our army was called the Army of the Khabt. Then the sea threw a huge fish called Al-`Anbar and we ate of it for half a month and rubbed our bodies with its fat till our bodies became healthy. Then Abu Ubaida took one of its ribs and fixed it over the ground and a rider passed underneath it. There was a man amongst us who slaughtered three camels when hunger became severe, and he slaughtered three more, but after that Abu 'Ubaida forbade him to do so.

I reached him (the Prophet ) while in the shade of the Ka`ba; he was saying, "They are the losers, by the Lord of the Ka`ba! They are the losers, by the Lord of the Ka`ba!" I said (to myself ), "What is wrong with me? Is anything improper detected in me? What is wrong with me? Then I sat beside him and he kept on saying his statement. I could not remain quiet, and Allah knows in what sorrowful state I was at that time. So I said, ' Who are they (the losers)? Let My father and mother be sacrificed for you, O Allah's Apostle!" He said, "They are the wealthy people, except the one who does like this and like this and like this (i.e., spends of his wealth in Allah's Cause).

There was an Ansari man called Abu Shu'aib who had a slave butcher. Abu Shu'aib said to him, "Prepare a meal sufficient for five persons so that I might invite the Prophet besides other four persons." Abu Shu'aib had seen the signs of hunger on the face of the Prophet and so he invited him. Another man who was not invited, followed the Prophet. The Prophet said to Abu Shu'aib, "This man has followed us. Do you allow him to share the meal?" Abu Shu'aib said, "Yes."

Allah's Apostle went out towards the Khandaq (i.e. Trench) and saw the Emigrants and the Ansar digging the trench in the cold morning. They had no slaves to do that (work) for them. When the Prophet saw their hardship and hunger, he said, 'O Allah! The real life is the life of the Hereafter, so please forgive Ansar and the Emigrants." They said in reply to him, "We are those who have given the Pledge of allegiances to Muhammad for to observe Jihad as long as we live."

Allah's Apostle went towards the Khandaq (i.e. Trench) and saw the Emigrants and the Ansar digging in a very cold morning as they did not have slaves to do that for them. When he noticed their fatigue and hunger he said, "O Allah! The real life is that of the Here-after, (so please) forgive the Ansar and the Emigrants." In its reply the Emigrants and the Ansar said, "We are those who have given a pledge of allegiance to Muhammad that we will carry on Jihad as long as we live."

Yahya related to me from Malik that he heard that the Messenger of Allah, may Allah bless him and grant him peace, entered the mosque and found Abu Bakr as-Siddiq and Umar ibn al-Khattab there. He questioned them and they said, "Hunger has driven us out." The Messenger of Allah, may Allah bless him and grant him peace, said, "And hunger has brought me out." They went to Abu'l-Haytham ibn at- Tayyihan al-Ansari. He ordered that some barley that was in the house be prepared and he got up to slaughter a sheep for them. The Messenger of Allah, may Allah bless him and grant him peace, said, "Leave the one with milk." He slaughtered a sheep for them and brought them sweet water and it was hung on a palm-tree. Then they were brought the food and ate it and drank the water. The Messenger of Allah, may Allah bless him and grant him peace, recited, "Then, on that day, you will be asked concerning pleasure." (Sura 102 ayat 8).

When the (following) Verse was revealed to Allah's Apostle: 'Say: He has power to send torment on you from above,'..(6.65) he said, "O Allah! I seek refuge with Your Face (from that punishment)." And when this was revealed: '..or from beneath your feet.' (6.65) he said, "O Allah! I seek refuge with Your Face (from that)." And when this Verse was revealed: '..or to cover you with confusion in partystrife, and make you to taste the violence of one another,'...(6.65) he said: "These two warnings are easier (than the previous ones).

when this Verse:--'Say (O Muhammad!): He has Power to send torments on you from above,' (6.65) was revealed; The Prophet said, "I take refuge with Your Face." Allah revealed:-- '..or from underneath your feet.' (6.65) The Prophet then said, "I seek refuge with Your Face!" Then Allah revealed:--'...or confuse you in party-strife.' (6.65) Oh that, the Prophet said, "This is easier."

We were with `Abdullah and he said, "When the Prophet saw the refusal of the people to accept Islam he said, "O Allah! Send (famine) years on them for (seven years) like the seven years (of famine during the time) of (Prophet) Joseph." So famine overtook them for one year and destroyed every kind of life to such an extent that the people started eating hides, carcasses and rotten dead animals. Whenever one of them looked towards the sky, he would (imagine himself to) see smoke because of hunger. So Abu Sufyan went to the Prophet and said, "O Muhammad! You order people to obey Allah and to keep good relations with kith and kin. No doubt the people of your tribe are dying, so please pray to Allah for them." So Allah revealed: "Then watch you For the day that The sky will bring forth a kind Of smoke Plainly visible ... Verily! You will return (to disbelief) On the day when We shall seize You with a mighty grasp. (44.10-16) Ibn Mas`ud added, "Al-Batsha (i.e. grasp) happened in the battle of Badr and no doubt smoke, Al-Batsha, Al-Lizam, and the verse of Surat Ar-Rum have all passed .

When this Verse was revealed: "Say: He has power to send torment on you from above." (6.65) Allah's Apostle said, "O Allah! I seek refuge with Your Face (from this punishment)." And when the verse: "or send torment from below your feet," (was revealed), Allah's Apostle said, "(O Allah!) I seek refuge with Your Face (from this punishment)." (But when there was revealed): "Or confuse you in party strife and make you to taste the violence of one another." (6.65) Allah's Apostle said, "This is lighter (or, this is easier).

Whenever the Prophet went to bed every night, he used to cup his hands together and blow over it after reciting Surat Al-Ikhlas, Surat Al-Falaq and Surat An-Nas, and then rub his hands over whatever parts of his body he was able to rub, starting with his head, face and front of his body. He used to do that three times.

The people used to say, "Abu Huraira narrates too many narrations." In fact I used to keep close to Allah's Apostle and was satisfied with what filled my stomach. I ate no leavened bread and dressed no decorated striped clothes, and never did a man or a woman serve me, and I often used to press my belly against gravel because of hunger, and I used to ask a man to recite a Qur'anic Verse to me although I knew it, so that he would take me to his home and feed me. And the most generous of all the people to the poor was Ja`far bin Abi Talib. He used to take us to his home and offer us what was available therein. He would even offer us an empty folded leather container (of butter) which we would split and lick whatever was in it.

It is a sign of having knowledge that, when you do not know something, you say: 'Allah knows better.' Allah said to his Prophet: 'Say: No wage do I ask of you for this (Qur'an), nor am I one of the pretenders (a person who pretends things which do not exist)' (38.86) When the Quraish troubled and stood against the Prophet he said, "O Allah! Help me against them by afflicting them with seven years of famine like the seven years of Joseph." So they were stricken with a year of famine during which they ate bones and dead animals because of too much suffering, and one of them would see something like smoke between him and the sky because of hunger. Then they said: Our Lord! Remove the torment from us, really we are believers. (44.12) And then it was said to the Prophet (by Allah), "If we remove it from them. they will revert to their ways (of heathenism)." So the Prophet invoked his Lord, who removed the punishment from them, but later they reverted (to heathenism), whereupon Allah punished them on the day of the Battle of Badr, and that is what Allah's Statement indicates: 'Then watch for the day that the sky will bring forth a kind of smoke plainly visible...we will indeed (then) exact retribution.' (44.10).

Allah's Apostle said to Mu`adh bin Jabal when he sent him to Yemen. "You will come to the people of Scripture, and when you reach them, invite them to testify that none has the right to be worshipped except Allah and that Muhammad is His Apostle. And if they obey you in that, then tell them that Allah has enjoined on them five prayers to be performed every day and night. And if they obey you in that, then tell them that Allah has enjoined on them Sadaqa (i.e. rak`at) to be taken from the rich amongst them and given to the poor amongst them. And if they obey you in that, then be cautious! Don't take their best properties (as Zakat) and be afraid of the curse of an oppressed person as there is no screen between his invocation and Allah.

(the slave of Ibn `Abbas) Allah's Apostle said to Mu`adh when he sent him to Yemen, "You will go to the people of the Scripture. So, when you reach there, invite them to testify that none has the right to be worshipped but Allah, and that Muhammad is His Apostle. And if they obey you in that, tell them that Allah has enjoined on them five prayers in each day and night. And if they obey you in that tell them that Allah has made it obligatory on them to pay the Zakat which will be taken from the rich among them and given to the poor among them. If they obey you in that, then avoid taking the best of their possessions, and be afraid of the curse of an oppressed person because there is no screen between his invocation and Allah."

The Prophet said, "On the day of Resurrection Allah will say, 'O Adam!' Adam will reply, 'Labbaik our Lord, and Sa`daik ' Then there will be a loud call (saying), Allah orders you to take from among your offspring a mission for the (Hell) Fire.' Adam will say, 'O Lord! Who are the mission for the (Hell) Fire?' Allah will say, 'Out of each thousand, take out 999.' At that time every pregnant female shall drop her load (have a miscarriage) and a child will have grey hair. And you shall see mankind as in a drunken state, yet not drunk, but severe will be the torment of Allah." (22.2) (When the Prophet mentioned this), the people were so distressed (and afraid) that their faces got changed (in color) whereupon the Prophet said, "From Gog and Magog nine-hundred ninety-nine will be taken out and one from you. You Muslims (compared to the large number of other people) will be like a black hair on the side of a white ox, or a white hair on the side of a black ox, and I hope that you will be onefourth of the people of Paradise." On that, we said, "Allahu-Akbar!" Then he said, "I hope that you will be) one-third of the people of Paradise." We again said, "Allahu-Akbar!" Then he said, "(I hope that you will be) one-half of the people of Paradise." So we said, Allahu Akbar."

The Messenger of Allah (saws) used to say at the end of his witr: "O Allah, I seek refuge in Thy good pleasure from Thy anger, and in Thy forgiveness from Thy punishment, and I seek refuge in Thy mercy from Thy wrath. I cannot reckon the praise due to Thee. Thou art as Thou hast praised Thyself."

Abu Dawud said: Hisham is the earliest teacher of Hammad. Yahya b. Ma'in said: No one is reported to have narrated traditions form him except Hammad b. Salamah.

Abu Dawud said: Ubayy b. Ka'b said: The Messenger of Allah (saws) recited supplication in the witr before bowing.

Abu Dawud said: This tradition has also been narrated by 'Isa b. Yunus through a different chain of narrators from Ubayy b. Ka'b. He also narrated it through a different chain of narrators on the authority of Ubayy b. Ka'b that the Messenger of Allah (saw) recited the supplication in the witr before bowing.

Abu Dawud said: The chain of narrators of the tradition of Sa'id from Qatadah goes: Yazid b. Zurai' narrated from Sa'id, from Qatadah, from 'Azrah, from Sa'id b. 'Abd al-Rahman b. Abza, on the authority of his father, from the Prophet (saws). This version does not mention the supplication and the name of Ubayy. This tradition has also been narrated by 'Abd al-A'la and Muhammad b. Bishr al-'Abdi. He heard the traditions from 'Isa b. Yunus at Kufah. They did not mention the supplication in their version.

This tradition has also been narrated by Hisham al-Dastuwa'i and Shu'bah from Qatadah. They did not mention the supplication in their version. The tradition of Zubaid has been narrated by Sulaiman al-A'mash, Shu'bah, 'Abd al-Malik b. Abi Sulaiman, and Jarir b. Hazim; all of them narrated on the authority of Zubaid. None of them mention the supplication in his version, except in the tradition transmitted by Hafs b. Ghiyath from Mis'ar from Zubaid; he narrated in his version that he (the Prophet) recited supplication before bowing.

Abu Dawud said: This version of tradition is not well know. There is doubt that Hafs might have narrated this tradition from some other narrator than Mis'ar.

Abu Dawud said: It is reported that Ubayy (b. Ka'b) used to recited the supplication )in the witr) in the second half of Ramadan.

There was an Ansari man nicknamed, Abu Shu'aib, who had a slave who was a butcher. He came to the Prophet while he was sitting with his companions and noticed the signs of hunger on the face of the Prophet . So he went to his butcher slave and said, "Prepare for me a meal sufficient for five persons so that I may invite the Prophet along with four other men." He had the meal prepared for him and invited him. A (sixth) man followed them. The Prophet said, "O Abu Shu'aib! Another man has followed us. If you wish, you may invite him; and if you wish, you may refuse him." Abu Shu'aib said, "No, I will admit him."

I came upon `Abdullah and he said, "When Allah's Apostle invited Quraish (to Islam), they disbelieved him and stood against him. So he (the Prophet) said, "O Allah! Help me against them by afflicting them with seven years of famine similar to the seven years of Joseph.' So they were stricken with a year of drought that destroyed everything, and they started eating dead animals, and if one of them got up he would see something like smoke between him and the sky from the severe fatigue and hunger." `Abdullah then recited:-- 'Then watch you for the Day that the sky will bring forth a kind of smoke plainly visible, covering the people. This is a painful torment... (till he reached) ........ We shall indeed remove the punishment for a while, but truly you will revert (to heathenism): (44.10-15) `Abdullah added: "Will the punishment be removed from them on the Day of Resurrection?" He added," The severe grasp" was the Day of the Battle of Badr."

Allah's Apostle said, "Allah created the creation, and when He finished from His creation the Rahm (womb) got up, and Allah said (to it). "Stop! What do you want? It said; "At this place I seek refuge with You from all those who sever me (i.e. sever the ties of Kinship.)" Allah said: "Would you be pleased that I will keep good relation with the one who will keep good relation with you, and I will sever the relation with the one who will sever the relation with you. It said: 'Yes, 'O my Lord.' Allah said (to it), 'That is for you.'' And then Abu Huraira recited the Verse:-- "Would you then if you were given the authority, do mischief in the land, and sever your ties of kinship." (47.22)

The Prophet said, "Allah created the creations, and when He finished from His creations, Ar-Rahm i.e., womb said, "(O Allah) at this place I seek refuge with You from all those who sever me (i.e. sever the ties of Kith and kin). Allah said, 'Yes, won't you be pleased that I will keep good relations with the one who will keep good relations with you, and I will sever the relation with the one who will sever the relations with you.' It said, 'Yes, O my Lord.' Allah said, 'Then that is for you ' " Allah's Apostle added. "Read (in the Qur'an) if you wish, the Statement of Allah: 'Would you then, if you were given the authority, do mischief in the land and sever your ties of kinship?' (47.22)

The Prophet said, "Allah created His creation, and when He had finished it, the womb, got up and caught hold of Allah whereupon Allah said, "What is the matter?' On that, it said, 'I seek refuge with you from those who sever the ties of Kith and kin.' On that Allah said, 'Will you be satisfied if I bestow My favors on him who keeps your ties, and withhold My favors from him who severs your ties?' On that it said, 'Yes, O my Lord!' Then Allah said, 'That is for you.' " Abu Huraira added: If you wish, you can recite: "Would you then if you were given the authority. do mischief in the land and sever your ties of kinship. (47. 22)

The Prophet (saws) sent Mu`adh to Yemen and said, "Invite the people to testify that none has the right to be worshipped but Allah and I am Allah's Apostle, and if they obey you to do so, then teach them that Allah has enjoined on them five prayers in every day and night (in twenty-four hours), and if they obey you to do so, then teach them that Allah has made it obligatory for them to pay the Zakat from their property and it is to be taken from the wealthy among them and given to the poor."

The Prophet said, "While I was at the House in a state midway between sleep and wakefulness, (an angel recognized me) as the man lying between two men. A golden tray full of wisdom and belief was brought to me and my body was cut open from the throat to the lower part of the `Abdomen and then my `Abdomen was washed with Zamzam water and (my heart was) filled with wisdom and belief. Al- Buraq, a white animal, smaller than a mule and bigger than a donkey was brought to me and I set out with Gabriel. When I reached the nearest heaven. Gabriel said to the heaven gate-keeper, 'Open the gate.' The gatekeeper asked, 'Who is it?' He said, 'Gabriel.' The gate-keeper,' Who is accompanying you?' Gabriel said, 'Muhammad.' The gate-keeper said, 'Has he been called?' Gabriel said, 'Yes.' Then it was said, 'He is welcomed. What a wonderful visit his is!' Then I met Adam and greeted him and he said, 'You are welcomed O son and a Prophet.' Then we ascended to the second heaven. It was asked, 'Who is it?' Gabriel said, 'Gabriel.' It was said, 'Who is with you?' He said, 'Muhammad' It was asked, 'Has he been sent for?' He said, 'Yes.' It was said, 'He is welcomed. What a wonderful visit his is!" Then I met Jesus and Yahya (John) who said, 'You are welcomed, O brother and a Prophet.' Then we ascended to the third heaven. It was asked, 'Who is it?' Gabriel said, 'Gabriel.' It was asked, 'Who is with you? Gabriel said, 'Muhammad.' It was asked, 'Has he been sent for?' 'Yes,' said Gabriel. 'He is welcomed. What a wonderful visit his is!' (The Prophet added:). There I met Joseph and greeted him, and he replied, 'You are welcomed, O brother and a Prophet!' Then we ascended to the 4th heaven and again the same questions and answers were exchanged as in the previous heavens. There I met Idris and greeted him. He said, 'You are welcomed O brother and Prophet.' Then we ascended to the 5th heaven and again the same questions and answers were exchanged as in previous heavens. there I met and greeted Aaron who said, 'You are welcomed O brother and a Prophet". Then we ascended to the 6th heaven and again the same questions and answers were exchanged as in the previous heavens. There I met and greeted Moses who said, 'You are welcomed O brother and. a Prophet.' When I proceeded on, he started weeping and on being asked why he was weeping, he said, 'O Lord! Followers of this youth who was sent after me will enter Paradise in greater number ...

Once while I was in a state of fatigue (because of severe hunger), I met 'Umar bin Al-Khattab, so I asked him to recite a verse from Allah's Book to me. He entered his house and interpreted it to me. (Then I went out and) after walking for a short distance, I fell on my face because of fatigue and severe hunger. Suddenly I saw Allah's Apostle standing by my head. He said, "O Abu Huraira!" I replied, "Labbaik, O Allah's Apostle, and Sadaik!" Then he held me by the hand, and made me get up. Then he came to know what I was suffering from. He took me to his house, and ordered a big bowl of milk for me. I drank thereof and he said, "Drink more, O Abu Hirr!" So I drank again, whereupon he again said, "Drink more." So I drank more till my belly became full and looked like a bowl. Afterwards I met 'Umar and mentioned to him what had happened to me, and said to him, "Somebody, who had more right than you, O 'Umar, took over the case. By Allah, I asked you to recite a Verse to me while I knew it better than you." On that Umar said to me, "By Allah, if I admitted and entertained you, it would have been dearer to me than having nice red camels.

The Prophet said, "Paradise and the Fire (Hell) argued, and the Fire (Hell) said, "I have been given the privilege of receiving the arrogant and the tyrants.' Paradise said, 'What is the matter with me? Why do only the weak and the humble among the people enter me?' On that, Allah said to Paradise. 'You are My Mercy which I bestow on whoever I wish of my servants.' Then Allah said to the (Hell) Fire, 'You are my (means of) punishment by which I punish whoever I wish of my slaves. And each of you will have its fill.' As for the Fire (Hell), it will not be filled till Allah puts His Foot over it whereupon it will say, 'Qati! Qati!' At that time it will be filled, and its different parts will come closer to each other; and Allah will not wrong any of His created beings. As regards Paradise, Allah will create a new creation to fill it with."

The Prophet said, "The example of a miser and the one who gives in charity, is like the example of two men wearing iron cloaks so tightly that their arms are raised forcibly towards their collar-bones. So, whenever a charitable person wants to give in charity, his cloak spreads over his body so much so that it wipes out his traces, but whenever the miser wants to give in charity, the rings (of the iron cloak) come closer to each other and press over his body, and his hands gets connected to his collarbones. Abu Huraira heard the Prophet saying. "The miser then tries to widen it but in vain."

The Prophet narrating about his Lord I'm and said, "Allah ordered (the appointed angels over you) that the good and the bad deeds be written, and He then showed (the way) how (to write). If somebody intends to do a good deed and he does not do it, then Allah will write for him a full good deed (in his account with Him); and if he intends to do a good deed and actually did it, then Allah will write for him (in his account) with Him (its reward equal) from ten to seven hundred times to many more times: and if somebody intended to do a bad deed and he does not do it, then Allah will write a full good deed (in his account) with Him, and if he intended to do it (a bad deed) and actually did it, then Allah will write one bad deed (in his account) ."

By Allah except Whom none has the right to- be worshipped, (sometimes) I used to lay (sleep) on the ground on my liver (abdomen) because of hunger, and (sometimes) I used to bind a stone over my belly because of hunger. One day I sat by the way from where they (the Prophet and his companions) used to come out. When Abu Bakr passed by, I asked him about a Verse from Allah's Book and I asked him only that he might satisfy my hunger, but he passed by and did not do so. Then `Umar passed by me and I asked him about a Verse from Allah's Book, and I asked him only that he might satisfy my hunger, but he passed by without doing so. Finally Abu-l-Qasim (the Prophet ) passed by me and he smiled when he saw me, for he knew what was in my heart and on my face. He said, "O Aba Hirr (Abu Huraira)!" I replied, "Labbaik, O Allah's Apostle!" He said to me, "Follow me." He left and I followed him. Then he entered the house and I asked permission to enter and was admitted. He found milk in a bowl and said, "From where is this milk?" They said, "It has been presented to you by such-and-such man (or by such and such woman)." He said, "O Aba Hirr!" I said, "Labbaik, O Allah's Apostle!" He said, "Go and call the people of Suffa to me." These people of Suffa were the guests of Islam who had no families, nor money, nor anybody to depend upon, and whenever an object of charity was brought to the Prophet, he would send it to them and would not take anything from it, and whenever any present was given to him, he used to send some for them and take some of it for himself. The order of the Prophet upset me, and I said to myself, "How will this little milk be enough for the people of As- Suffa? though I was more entitled to drink from that milk in order to strengthen myself", but behold! The Prophet came to order me to give that milk to them. I wondered what will remain of that milk for me, but anyway, I could not but obey Allah and His Apostle so I went to the people of As-Suffa and called them, and they came and asked the Prophet's permission to enter. They were admitted and took their seats in the house. The Prophet said, "O Aba-Hirr!" I said, "Labbaik, O Allah's Apostle!" He said, "Take it and give it to them." So I took the bowl (of milk) and started giving it to one man who would drink his fill and return it to me, whereupon I would give it to another man who, in his turn, would drink his fill and return it to me, and I would ...

My grandfather, Rafi` said, "We were in the company of the Prophet at DhulHulaifa, and the people suffered from hunger. We got some camels and sheep (as booty) and the Prophet was still behind the people. They hurried and put the cooking pots on the fire. (When he came) he ordered that the cooking pots should be upset and then he distributed the booty (amongst the people) regarding ten sheep as equal to one camel then a camel fled and the people chased it till they got tired, as they had a few horses (for chasing it). So a man threw an arrow at it and caused it to stop (with Allah's Permission). On that the Prophet said, 'Some of these animals behave like wild beasts, so, if any animal flee from you, deal with it in the same way." My grandfather asked (the Prophet ), "We hope (or are afraid) that we may meet the enemy tomorrow and we have no knives. Can we slaughter our animals with canes?" Allah's Apostle replied, "If the instrument used for killing causes the animal to bleed profusely and if Allah's Name is mentioned on killing it, then eat its meat (i.e. it is lawful) but won't use a tooth or a nail and I am telling you the reason: A tooth is a bone (and slaughtering with a bone is forbidden ), and a nail is the slaughtering instrument of the Ethiopians."