Ibn Umar (Allah be pleased with both of them) reported Allah's Messenger (may peace be upon him) as saying:
| Reference | : Sahih Muslim 1080l |
| In-book reference | : Book 13, Hadith 15 |
| USC-MSA web (English) reference | : Book 6, Hadith 2374 |
| (deprecated numbering scheme) |
Thabit reported:
| Reference | : Sahih Muslim 1997e |
| In-book reference | : Book 36, Hadith 64 |
| USC-MSA web (English) reference | : Book 23, Hadith 4936 |
| (deprecated numbering scheme) |
Ibrahim b. Maisarah reported that he heard Tawus as saying:
| Reference | : Sahih Muslim 1997i |
| In-book reference | : Book 36, Hadith 68 |
| USC-MSA web (English) reference | : Book 23, Hadith 4940 |
| (deprecated numbering scheme) |
Abdullah b. 'Umar commanded a person that as he went to bed, he should say:
| Reference | : Sahih Muslim 2712 |
| In-book reference | : Book 48, Hadith 81 |
| USC-MSA web (English) reference | : Book 35, Hadith 6550 |
| (deprecated numbering scheme) |
Yahya related to me from Malik from Nafi that Abdullah ibn Umar used to pay the zakat al-fitr for those slaves of his that were at Wadi'l-Qura and Khaybar.
Yahya related to me that Malik said, "The best that I have heard about the zakat al-fitr is that a man has to pay for every person that he is responsible for supporting and whom he must support. He has to pay forall his mukatabs, his mudabbars, and his ordinary slaves, whether they are present or absent, as long as they are muslim, and whether or not they are fortrade. However, he does not have to pay zakat on any of them that are not muslim."
Malik said, concerning a runaway slave, "I think that his master should pay the zakat fo rhim whether or not he knows where he is, if it has not been long since the slave ran away and his master hopes that he is still alive and will return. If it has been a long time since he ran away and his master has despaired of him returning then I do not think that he should pay zakat for him.'
Malik said, "The zakat al-fitr has to be paid by people living in the desert (i.e. nomadic people) just as it has to be paid by people living in villages (i.e. settled people), because the Messenger of Allah, may Allah bless him and grant him peace, made the zakat al-fitr at the end of Ramadan obligatory on every muslim, whether freeman or slave, male or female."
| USC-MSA web (English) reference | : Book 17, Hadith 52 |
| Arabic reference | : Book 17, Hadith 628 |
Narrated Ibn 'Umar:
I remember ten Rakat of Nawafil from the Prophet, two Rakat before the Zuhr prayer and two after it; two Rakat after Maghrib prayer in his house, and two Rakat after 'Isha' prayer in his house, and two Rakat before the Fajr prayer and at that time nobody would enter the house of the Prophet.
Hafsa told me that the Prophet used to offer two Rakat after the call maker had made the Adhan and the day had dawned.
| Reference | : Sahih al-Bukhari 1180, 1181 |
| In-book reference | : Book 19, Hadith 58 |
| USC-MSA web (English) reference | : Vol. 2, Book 21, Hadith 275 |
| (deprecated numbering scheme) |
Narrated `Abdullah bin `Umar:
The Talbiya of Allah's Apostle was : 'Labbaika Allahumma labbaik, Labbaika la sharika Laka labbaik, Inna-l-hamda wan-ni'mata Laka walmulk, La sharika Laka' (I respond to Your call O Allah, I respond to Your call, and I am obedient to Your orders, You have no partner, I respond to Your call All the praises and blessings are for You, All the sovereignty is for You, And You have no partners with you.
| Reference | : Sahih al-Bukhari 1549 |
| In-book reference | : Book 25, Hadith 35 |
| USC-MSA web (English) reference | : Vol. 2, Book 26, Hadith 621 |
| (deprecated numbering scheme) |
Narrated Salim:
(Abdullah) bin `Umar used to say, "Is not (the following of) the tradition of Allah's Apostle sufficient for you? If anyone of you is prevented from performing Hajj, he should perform the Tawaf of the Ka`ba and between As-Safa and Al-Marwa and then finish the Ihram and everything will become legal for him which was illegal for him (during the state of Ihram) and he can perform Hajj in a following year and he should slaughter a Hadi or fast in case he cannot afford the Hadi."
| Reference | : Sahih al-Bukhari 1810 |
| In-book reference | : Book 27, Hadith 5 |
| USC-MSA web (English) reference | : Vol. 3, Book 28, Hadith 37 |
| (deprecated numbering scheme) |
Narrated `Abdullah bin `Umar:
While the Prophet was passing the night at his place of rest in Dhul-Hulaifa in the bottom of the valley (of Aqiq), he saw a dream and it was said to him, "You are in a blessed valley." Musa said, "Salim let our camels kneel at the place where `Abdullah used to make his camel kneel, seeking the place where Allah's Apostle used to take a rest, which is situated below the mosque which is in the bottom of the valley; it is midway between the mosque and the road."
| Reference | : Sahih al-Bukhari 2336 |
| In-book reference | : Book 41, Hadith 17 |
| USC-MSA web (English) reference | : Vol. 3, Book 39, Hadith 529 |
| (deprecated numbering scheme) |
Narrated Ibn `Umar:
Once Allah's Apostle stood amongst the people, glorified and praised Allah as He deserved and then mentioned the Dajjal saying, "l warn you against him (i.e. the Dajjal) and there was no prophet but warned his nation against him. No doubt, Noah warned his nation against him but I tell you about him something of which no prophet told his nation before me. You should know that he is one-eyed, and Allah is not one-eyed."
| Reference | : Sahih al-Bukhari 3337 |
| In-book reference | : Book 60, Hadith 12 |
| USC-MSA web (English) reference | : Vol. 4, Book 55, Hadith 553 |
| (deprecated numbering scheme) |
Narrated Ibn `Umar:
The Prophet stood at the well of Badr (which contained the corpses of the pagans) and said, "Have you found true what your lord promised you?" Then he further said, "They now hear what I say." This was mentioned before `Aisha and she said, "But the Prophet said, 'Now they know very well that what I used to tell them was the truth.' Then she recited (the Holy Verse):-- "You cannot make the dead hear... ...till the end of Verse)." (30.52)
| Reference | : Sahih al-Bukhari 3980, 3981 |
| In-book reference | : Book 64, Hadith 32 |
| USC-MSA web (English) reference | : Vol. 5, Book 59, Hadith 317 |
| (deprecated numbering scheme) |
Narrated Ibn `Umar:
On the day of Al-Ahzab (i.e. Clans) the Prophet said, "None of you Muslims) should offer the `Asr prayer but at Banu Quraiza's place." The `Asr prayer became due for some of them on the way. Some of those said, "We will not offer it till we reach it, the place of Banu Quraiza," while some others said, "No, we will pray at this spot, for the Prophet did not mean that for us." Later on It was mentioned to the Prophet and he did not berate any of the two groups.
| Reference | : Sahih al-Bukhari 4119 |
| In-book reference | : Book 64, Hadith 163 |
| USC-MSA web (English) reference | : Vol. 5, Book 59, Hadith 445 |
| (deprecated numbering scheme) |
Narrated Ibn `Umar:
The Prophet said to those who were involved in a case of Lian, "Your accounts are with Allah. One of you two is a liar. You (husband) have right on her (wife)." The husband said, "My money, O Allah's Apostle!" The Prophet said, "You are not entitled to take back any money. If you have told the truth, the Mahr that you paid, was for having sexual relations with her lawfully; and if you are a liar, then you are less entitled to get it back."
| Reference | : Sahih al-Bukhari 5350 |
| In-book reference | : Book 68, Hadith 95 |
| USC-MSA web (English) reference | : Vol. 7, Book 63, Hadith 262 |
| (deprecated numbering scheme) |
Narrated Ibn `Umar:
Allah's Apostle had a gold ring made for himself, and he used to wear it with the stone towards the inner part of his hand. Consequently, the people had similar rings made for themselves. Afterwards the Prophet; sat on the pulpit and took it off, saying, "I used to wear this ring and keep its stone towards the palm of my hand." He then threw it away and said, "By Allah, I will never wear it." Therefore all the people threw away their rings as well.
| Reference | : Sahih al-Bukhari 6651 |
| In-book reference | : Book 83, Hadith 30 |
| USC-MSA web (English) reference | : Vol. 8, Book 78, Hadith 646 |
| (deprecated numbering scheme) |
Narrated Humaid:
Anas said, "Whenever Allah's Apostle returned from a journey, he, on seeing the high places of Medina, would make his she-camel proceed faster; and if it were another animal, even then he used to make it proceed faster." Narrated Humaid that the Prophet used to make it proceed faster out of his love for Medina.
Narrated Anas:
As above, but mentioned "the walls of Medina" instead of "the high places of Medina." Al-Harith bin `Umar agrees with Anas.
حَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا إِسْمَاعِيلُ، عَنْ حُمَيْدٍ، عَنْ أَنَسٍ، قَالَ جُدُرَاتٍ. تَابَعَهُ الْحَارِثُ بْنُ عُمَيْرٍ
.| Reference | : Sahih al-Bukhari 1802 |
| In-book reference | : Book 26, Hadith 27 |
| USC-MSA web (English) reference | : Vol. 3, Book 27, Hadith 28 |
| (deprecated numbering scheme) |
| لم تتمّ دراسته (الألباني) | حكم : |
| Reference | : Mishkat al-Masabih 3061 |
| In-book reference | : Book 12, Hadith 20 |
| صَحِيح (الألباني) | حكم : |
| Reference | : Mishkat al-Masabih 2660 |
| In-book reference | : Book 10, Hadith 151 |
Narrated Anas bin Malik:
That he heard `Umar's second speech he delivered when he sat on the pulpit on the day following the death of the Prophet `Umar recited the Tashahhud while Abu Bakr was silent. `Umar said, "I wish that Allah's Apostle had outlived all of us, i.e., had been the last (to die). But if Muhammad is dead, Allah nevertheless has kept the light amongst you from which you can receive the same guidance as Allah guided Muhammad with that. And Abu Bakr is the companion of Allah's Apostle He is the second of the two in the cave. He is the most entitled person among the Muslims to manage your affairs. Therefore get up and swear allegiance to him." Some people had already taken the oath of allegiance to him in the shed of Bani Sa`ida but the oath of allegiance taken by the public was taken at the pulpit. I heard `Umar saying to Abu Bakr on that day. "Please ascend the pulpit," and kept on urging him till he ascended the pulpit whereupon, all the people swore allegiance to him.
| Reference | : Sahih al-Bukhari 7219 |
| In-book reference | : Book 93, Hadith 79 |
| USC-MSA web (English) reference | : Vol. 9, Book 89, Hadith 326 |
| (deprecated numbering scheme) |
| Grade: | Sahih (Al-Albani) | صحيح (الألباني) | حكم : |
| Reference | : Sunan Abi Dawud 1823 |
| In-book reference | : Book 11, Hadith 103 |
| English translation | : Book 10, Hadith 1819 |
Ibn Umar reported:
| Reference | : Sahih Muslim 501a |
| In-book reference | : Book 4, Hadith 277 |
| USC-MSA web (English) reference | : Book 4, Hadith 1010 |
| (deprecated numbering scheme) |
Ibn 'Umar reported:
| Reference | : Sahih Muslim 575a |
| In-book reference | : Book 5, Hadith 133 |
| USC-MSA web (English) reference | : Book 4, Hadith 1189 |
| (deprecated numbering scheme) |
Ibn Umar (Allah be pleased with both of them) reported Allah's Messenger (may peace be upon him) as saying:
| Reference | : Sahih Muslim 1080i |
| In-book reference | : Book 13, Hadith 12 |
| USC-MSA web (English) reference | : Book 6, Hadith 2371 |
| (deprecated numbering scheme) |
Ibn Umar (Allah be pleased with them) reported Allah's Apostle (may peace be upon him) as having said this:
| Reference | : Sahih Muslim 1412b |
| In-book reference | : Book 16, Hadith 58 |
| USC-MSA web (English) reference | : Book 8, Hadith 3287 |
| (deprecated numbering scheme) |
It has been narrated on the authority of Ibn 'Umar that the Messenger of Allah (may peace be upon him) said:
| Reference | : Sahih Muslim 1869c |
| In-book reference | : Book 33, Hadith 137 |
| USC-MSA web (English) reference | : Book 20, Hadith 4609 |
| (deprecated numbering scheme) |
Narrated Nafi`:
When the people of Medina dethroned Yazid bin Muawiya, Ibn `Umar gathered his special friends and children and said, "I heard the Prophet saying, 'A flag will be fixed for every betrayer on the Day of Resurrection,' and we have given the oath of allegiance to this person (Yazid) in accordance with the conditions enjoined by Allah and His Apostle and I do not know of anything more faithless than fighting a person who has been given the oath of allegiance in accordance with the conditions enjoined by Allah and His Apostle , and if ever I learn that any person among you has agreed to dethrone Yazid, by giving the oath of allegiance (to somebody else) then there will be separation between him and me."
| Reference | : Sahih al-Bukhari 7111 |
| In-book reference | : Book 92, Hadith 58 |
| USC-MSA web (English) reference | : Vol. 9, Book 88, Hadith 227 |
| (deprecated numbering scheme) |
| Grade: | Da’if (Darussalam) |
| Reference | : Sunan Ibn Majah 2894 |
| In-book reference | : Book 25, Hadith 13 |
| English translation | : Vol. 4, Book 25, Hadith 2894 |
Yahya related to me from Malik from Abdullah ibn Dinar that Abdullah ibn Umar said that the Messenger of Allah, may Allah bless him and grant him peace, said, "When a jew greets you, and says 'Death to you' (as-samu alaykum) say, 'And to you.' "
Yahya said, "Malik was asked whether a person who greeted a jew or christian, should apologise for it. He said, 'No'."
| Sunnah.com reference | : Book 53, Hadith 3 |
| USC-MSA web (English) reference | : Book 53, Hadith 3 |
| Arabic reference | : Book 53, Hadith 1761 |
Another chain reports exactly the same.
حَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ عَيَّاشٍ، حَدَّثَنَا الْحَجَّاجُ بْنُ أَرْطَاةَ، حَدَّثَنَا جَبَلَةُ بْنُ سُحَيْمٍ، قَالَ سَأَلْتُ ابْنَ عُمَرَ . فَذَكَرَ مِثْلَهُ سَوَاءً
.| Grade: | Da’if (Darussalam) |
| Reference | : Sunan Ibn Majah 3124 |
| In-book reference | : Book 26, Hadith 5 |
| English translation | : Vol. 4, Book 26, Hadith 3124 |
Nafi' reported that Ibn 'Umar told him that a person of the tribe of Laith said that Abu Sa'id al-Kludri narrated it (the above-mentioned hadith) from tile Messenger of Allah (may peace be upon him) in a narration of Qutaiba. So 'Abduliali and Nafi' went along with him, and in the hadith transmitted by Ibn Rumh (the words are) that Nafi' said:
| Reference | : Sahih Muslim 1584b |
| In-book reference | : Book 22, Hadith 94 |
| USC-MSA web (English) reference | : Book 10, Hadith 3846 |
| (deprecated numbering scheme) |
| Grade: | Sahih (Darussalam) |
| Reference | : Sunan Ibn Majah 2363 |
| In-book reference | : Book 13, Hadith 56 |
| English translation | : Vol. 3, Book 13, Hadith 2363 |
'Amra daughter of 'Abd al Rahman narrated that she heard (from) 'A'isha and made a mention to her about 'Abdullah b. 'Umar as saying:
| Reference | : Sahih Muslim 932c |
| In-book reference | : Book 11, Hadith 34 |
| USC-MSA web (English) reference | : Book 4, Hadith 2029 |
| (deprecated numbering scheme) |
Salim b. 'Abdullah reported that 'Abdullah b. 'Umar (Allah be pleased with them) used to send ahead of him the weak members of his household to stay during the night at Mash'ar al-Haram at Muzdalifa. They remembered Allah so long as they could afford, and then they proceeded before the stay of the Imam, and before his return. So some of them reached Mina for the dawn prayer and some of them reached there after that; and as they reached there, they stoned al-Jamra; and Ibn 'Umar (Allah be pleased with them) used to say:
| Reference | : Sahih Muslim 1295 |
| In-book reference | : Book 15, Hadith 334 |
| USC-MSA web (English) reference | : Book 7, Hadith 2969 |
| (deprecated numbering scheme) |
Narrated Ibn `Umar:
Allah's Apostle said, "Inform me of a tree which resembles a Muslim, giving its fruits at every season by the permission of its Lord, and the leaves of which do not fall." I thought of the date-palm tree, but I disliked to speak because Abu Bakr and `Umar were present there. When nobody spoke, the Prophet said, "It is the date-palm tree" When I came out with my father, I said, "O father! It came to my mind that it was the date-palm tree." He said, "What prevented you from saying it?" Had you said it, it would have been more dearer to me than such-and-such a thing (fortune)." I said, "Nothing prevented me but the fact that neither you nor Abu Bakr spoke, so I disliked to speak (in your presence).
| Reference | : Sahih al-Bukhari 6144 |
| In-book reference | : Book 78, Hadith 170 |
| USC-MSA web (English) reference | : Vol. 8, Book 73, Hadith 165 |
| (deprecated numbering scheme) |
Ibn 'Umar reported:
| Reference | : Sahih Muslim 442g |
| In-book reference | : Book 4, Hadith 156 |
| USC-MSA web (English) reference | : Book 4, Hadith 890 |
| (deprecated numbering scheme) |
Ibn 'Umar reported:
| Reference | : Sahih Muslim 526a |
| In-book reference | : Book 5, Hadith 18 |
| USC-MSA web (English) reference | : Book 4, Hadith 1073 |
| (deprecated numbering scheme) |
Ibn 'Umar reported:
| Reference | : Sahih Muslim 575b |
| In-book reference | : Book 5, Hadith 134 |
| USC-MSA web (English) reference | : Book 4, Hadith 1190 |
| (deprecated numbering scheme) |
Ibn 'Umar said:
| Reference | : Sahih Muslim 644b |
| In-book reference | : Book 5, Hadith 289 |
| USC-MSA web (English) reference | : Book 4, Hadith 1344 |
| (deprecated numbering scheme) |
Ibn 'Umar reported that he summoned (people) to pray on a cold, windy and rainy night, and then observed at the end of the Adhin:
| Reference | : Sahih Muslim 697b |
| In-book reference | : Book 6, Hadith 32 |
| USC-MSA web (English) reference | : Book 4, Hadith 1488 |
| (deprecated numbering scheme) |
Abu Sahba' said toIbn 'Abbas (Allah be pleased with them):
| Reference | : Sahih Muslim 1472b |
| In-book reference | : Book 18, Hadith 23 |
| USC-MSA web (English) reference | : Book 9, Hadith 3492 |
| (deprecated numbering scheme) |
Ibn 'Umar (Allah be pleased with them) reported Allah's Messenger (may peace be upon him) as saying:
| Reference | : Sahih Muslim 1412f |
| In-book reference | : Book 21, Hadith 12 |
| USC-MSA web (English) reference | : Book 10, Hadith 3618 |
| (deprecated numbering scheme) |
Abdullah b. Dinar narrated that he heard Ibn 'Umar (Allah be pleased with them) saying:
| Reference | : Sahih Muslim 1533a |
| In-book reference | : Book 21, Hadith 59 |
| USC-MSA web (English) reference | : Book 10, Hadith 3663 |
| (deprecated numbering scheme) |
Ibn Abbas (Allah be pleased with him) reported:
| Reference | : Sahih Muslim 1582a |
| In-book reference | : Book 22, Hadith 89 |
| USC-MSA web (English) reference | : Book 10, Hadith 3842 |
| (deprecated numbering scheme) |
A'isha reported Allah's Messenger (may peace be upon him) as saying:
| Reference | : Sahih Muslim 2398a |
| In-book reference | : Book 44, Hadith 34 |
| USC-MSA web (English) reference | : Book 31, Hadith 5901 |
| (deprecated numbering scheme) |
Abu Huraira reported Allah's Messenger (may peace be upon him) as saying:
| Reference | : Sahih Muslim 2677a |
| In-book reference | : Book 48, Hadith 5 |
| USC-MSA web (English) reference | : Book 35, Hadith 6475 |
| (deprecated numbering scheme) |
Al-Agharr al-Muzani who was from amongst the Companions of Allah's Apostle (may peace be upon him) reported that Ibn 'Umar stated to him that Allah's Messenger (may peace 'be upon him) said:
| Reference | : Sahih Muslim 2702b |
| In-book reference | : Book 48, Hadith 53 |
| USC-MSA web (English) reference | : Book 35, Hadith 6523 |
| (deprecated numbering scheme) |
| Reference | : Sahih Muslim 580b |
| In-book reference | : Book 5, Hadith 148 |
| USC-MSA web (English) reference | : Book 4, Hadith 1203 |
| (deprecated numbering scheme) |
Narrated `Umar bin Khattab:
I heard Hisham bin Hakim bin Hizam reciting Surat-al-Furqan during the lifetime of Allah's Apostle, and I listened to his recitation and noticed that he recited it in several ways which Allah's Apostle had not taught me. So I was on the point of attacking him in the prayer, but I waited till he finished his prayer, and then I seized him by the collar and said, "Who taught you this Surah which I have heard you reciting?" He replied, "Allah's Apostle taught it to me." I said, "You are telling a lie; By Allah! Allah's Apostle taught me (in a different way) this very Surah which I have heard you reciting." So I took him, leading him to Allah's Apostle and said, "O Allah's Apostle! I heard this person reciting Surat-al-Furqan in a way that you did not teach me, and you have taught me Surat-al-Furqan." The Prophet said, "O Hisham, recite!" So he recited in the same way as I heard him recite it before. On that Allah's Apostle said, "It was revealed to be recited in this way." Then Allah's Apostle said, "Recite, O `Umar!" So I recited it as he had taught me. Allah's Apostle then said, "It was revealed to be recited in this way." Allah" Apostle added, "The Qur'an has been revealed to be recited in several different ways, so recite of it that which is easier for you."
| Reference | : Sahih al-Bukhari 5041 |
| In-book reference | : Book 66, Hadith 65 |
| USC-MSA web (English) reference | : Vol. 6, Book 61, Hadith 561 |
| (deprecated numbering scheme) |
Narrated Umar ibn AbdulAziz:
Al-Mughirah (ibn Shu'bah) said: Umar ibn AbdulAziz gathered the family of Marwan when he was made caliph, and he said: Fadak belonged to the Messenger of Allah (saws), and he made contributions from it, showing repeated kindness to the poor of the Banu Hashim from it, and supplying from it the cost of marriage for those who were unmarried. Fatimah asked him to give it to her, but he refused. That is how matters stood during the lifetime of the Messenger of Allah (saws) till he passed on (i.e. died).
When AbuBakr was made ruler he administered it as the Prophet (saws) had done in his lifetime till he passed on. Then when Umar ibn al-Khattab was made ruler he administered it as they had done till he passed on. Then it was given to Marwan as a fief, and it afterwards came to Umar ibn AbdulAziz.
Umar ibn AbdulAziz said: I consider I have no right to something which the Messenger of Allah (saws) refused to Fatimah, and I call you to witness that I have restored it to its former condition; meaning in the time of the Messenger of Allah (saws).
Abu Dawud said: When 'Umar b. 'Abd al-'Aziz was made caliph its revenue was forty thousand dinars, and when he died its revenue was four hundred dinars. Had he remained alive, it would have been less than it.
| Grade: | Da'if (Al-Albani) | ضعيف (الألباني) | حكم : |
| Reference | : Sunan Abi Dawud 2972 |
| In-book reference | : Book 20, Hadith 45 |
| English translation | : Book 19, Hadith 2966 |
Yahya related to me from Malik that Abdullah ibn Dinar said, "A man came to Abdullah ibn Umar when I waswith him at the place where judgments were given and asked him about the suckling of an older person. Abdullah ibn Umar replied, 'A man came to Umar ibn al-Khattab and said, 'I have a slave-girl and I used to have intercourse with her. My wife went to her and suckled her. When I went to the girl, my wife told me to watch out, because she had suckled her!' Umar told him to beat his wife and to go to his slave-girl because kinship by suckling was only by the suckling of the young.' "
| Sunnah.com reference | : Book 30, Hadith 14 |
| USC-MSA web (English) reference | : Book 30, Hadith 13 |
| Arabic reference | : Book 30, Hadith 1288 |
Ibn Umar reported that Umar b. Khattab saw (some one selling) the garments of silk at the door of the mosque, whereupon he said:
| Reference | : Sahih Muslim 2068a |
| In-book reference | : Book 37, Hadith 16 |
| USC-MSA web (English) reference | : Book 24, Hadith 5141 |
| (deprecated numbering scheme) |