Allah's Apostle said, "When the Adhan for the prayer is pronounced, then Satan takes to his heels passing wind so that he may not hear the Adhan and when the Mu'adh-dhin finishes, he comes back; and when the Iqama is pronounced he again takes to his heels and when it is finished, he again comes back and continues reminding the praying person of things that he used not to remember when not in prayer till he forgets how much he has prayed." Abu Salama bin `Abdur-Rahman said, "If anyone of you has such a thing (forgetting the number of rak`at he has prayed) he should perform two prostrations of Sahu (i.e. forgetfulness) while sitting." Abu Salama narrates this from Abu Huraira.

While the Messenger of Allah (saws) was sitting with some of his companions, a man reviled AbuBakr and insulted him. But AbuBakr remained silent. He insulted him twice, but AbuBakr controlled himself. He insulted him thrice and AbuBakr took revenge on him. Then the Messenger of Allah (saws) got up when AbuBakr took revenge.

AbuBakr said: Were you angry with me, Messenger of Allah?

The Messenger of Allah (saws) replied: An angel came down from Heaven and he was rejecting what he had said to you. When you took revenge, a devil came down. I was not going to sit when the devil came down.

[Al-Bukhari].

All the idols which were worshiped by the people of Noah were worshiped by the Arabs later on. As for the idol Wadd, it was worshiped by the tribe of Kalb at Daumat-al-Jandal; Suwa` was the idol of (the tribe of) Hudhail; Yaghouth was worshiped by (the tribe of) Murad and then by Bani Ghutaif at Al-Jurf near Saba; Ya`uq was the idol of Hamdan, and Nasr was the idol of Himyar, the branch of Dhi-al-Kala`. The names (of the idols) formerly belonged to some pious men of the people of Noah, and when they died Satan inspired their people to (prepare and place idols at the places where they used to sit, and to call those idols by their names. The people did so, but the idols were not worshiped till those people (who initiated them) had died and the origin of the idols had become obscure, whereupon people began worshiping them.

Once `Umar (bin Al-Khattab) said to the companions of the Prophet "What do you think about this Verse:--"Does any of you wish that he should have a garden?" They replied, "Allah knows best." `Umar became angry and said, "Either say that you know or say that you do not know!" On that Ibn `Abbas said, "O chief of the believers! I have something in my mind to say about it." `Umar said, "O son of my brother! Say, and do not under estimate yourself." Ibn `Abbas said, "This Verse has been set up as an example for deeds." `Umar said, "What kind of deeds?" Ibn `Abbas said, "For deeds." `Umar said, "This is an example for a rich man who does goods out of obedience of Allah and then Allah sends him Satan whereupon he commits sins till all his good deeds are lost."

Allah's Apostle deputed me to keep Sadaqat (al-Fitr) of Ramadan. A comer came and started taking handfuls of the foodstuff (of the Sadaqa) (stealthily). I took hold of him and said, "By Allah, I will take you to Allah's Apostle ." He said, "I am needy and have many dependents, and I am in great need." I released him, and in the morning Allah's Apostle asked me, "What did your prisoner do yesterday?" I said, "O Allah's Apostle! The person complained of being needy and of having many dependents, so, I pitied him and let him go." Allah's Apostle said, "Indeed, he told you a lie and he will be coming again." I believed that he would show up again as Allah's Apostle had told me that he would return. So, I waited for him watchfully. When he (showed up and) started stealing handfuls of foodstuff, I caught hold of him again and said, "I will definitely take you to Allah's Apostle. He said, "Leave me, for I am very needy and have many dependents. I promise I will not come back again." I pitied him and let him go.

In the morning Allah's Apostle asked me, "What did your prisoner do." I replied, "O Allah's Apostle! He complained of his great need and of too many dependents, so I took pity on him and set him free." Allah's Apostle said, "Verily, he told you a lie and he will return." I waited for him attentively for the third time, and when he (came and) started stealing handfuls of the foodstuff, I caught hold of him and said, "I will surely take you to Allah's Apostle as it is the third time you promise not to return, yet you break your promise and come." He said, "(Forgive me and) I will teach you some words with which Allah will benefit you." I asked, "What are they?" He replied, "Whenever you go to bed, recite "Ayat-al-Kursi"-- 'Allahu la ilaha illa huwa-l-Haiy-ul Qaiyum' till you finish the whole verse. (If you do so), Allah will appoint a guard for you who will stay with you and no satan will come near you till morning. " So, I released him. In the morning, Allah's Apostle asked, "What did your prisoner do yesterday?" I replied, "He claimed that he would teach me some words by which Allah will benefit me, so I let him go." Allah's Apostle asked, "What are they?" I replied, "He said to me, 'Whenever you go to bed, recite Ayat-al-Kursi from the beginning to the end ---- Allahu la ilaha illa huwa-lHaiy-ul-Qaiyum----.' He further said to me, '(If you do so), Allah will appoint a guard for you who will stay with you, and no satan will come near you till morning.' (Abu Huraira or another sub-narrator) added that they (the companions) were very keen to do good deeds. The Prophet said, "He really spoke the truth, although he is an absolute liar. Do you know whom you were talking to, these three nights, O Abu Huraira?" Abu Huraira said, "No." He said, "It was Satan."

The Prophet (saws) said: Stand close together in your rows, bring them near one another, and stand neck to neck, for by Him in Whose hand my soul is, I see the devil coming in through openings in the row just like a small black sheep.