Saeed bin al-musayyab said: Umar bin al-khattab and Uthman bin Affan used to do that.

Abu Hurairah said: The Messenger of Allah ﷺ was asked: Messenger of Allah! What is back-biting? He replied: it is saying something about your brother which he would dislike. He was asked again: Tell me how the matter stands if what I say about my brother is true? He replied: if what you say of him is true, you have slandered him is true you have slandered him, and if what you say of him is not true, you have reviled him.

Abu Hurairah reported the Messenger of Allah ﷺ as saying: when two men abuse one another, what they say is laid to the charge of the one who began it, so long as the one who is wronged does not go over the score.

Anas bin Malik reported the Messenger of Allah ﷺ as saying: Do not hate each other ; do not envy each other; do not desert each other; and be the servants of Allah as brethren. It is not allowable for a Muslim to keep apart from his brother for more than three days.

Abu Ayyub al-Ansari reported the Messenger of Allah ﷺ as saying: it is not allowable for a Muslim to keep apart from his brother for more than three days. When they meet, this turns away from him, and that turns away from him. The better of the two is the one who initiates in salutation.

Abu Hurairah reported the Messenger of Allah ﷺ as saying: Avoid suspicion for suspicion is the most lying form of talk. Do not be inquisitive about one another, or spy on one another.

Narrated Abu Musa al-Ashari: The Messenger of Allah ﷺ said: He who plays backgammon disobeys Allah and His Messenger.

Narrated Abu Hurairah: The Prophet ﷺ said: When you hear. . . . (Musa's version has): When a man says people have perished, he is the one who has suffered that fate most. Abu Dawud said: Malik said: If he says that out of sadness for the decadence of religion which he sees among the people, I do not think there is any harm in that. If he says that out of self-conceit and servility of the people, it is an abominable act which has been prohibited.

Abdullah bin Umar said: When two men who came from the east made a speech and the people were charmed with their eloquence, the Messenger of Allah ﷺ said: In some eloquent speech there is magic.

Narrated Abu Hurairah: When the Messenger of Allah ﷺ finished the dawn prayer, he would ask: Did any of you have a dream last night? And he said: All that is left of Prophecy after me is a good vision.

Narrated Uthman ibn Affan: Aban ibn Uthman said: I heard Uthman ibn Affan (his father) say: I heard the Messenger of Allah ﷺ say: If anyone says three times: "In the name of Allah, when Whose name is mentioned nothing on Earth or in Heaven can cause harm, and He is the Hearer, the Knower" he will not suffer sudden affliction till the morning, and if anyone says this in the morning, he will not suffer sudden affliction till the evening. Aban was afflicted by some paralysis and when a man who heard the tradition began to look at him, he said to him: Why are you looking at me? I swear by Allah, I did not tell a lie about Uthman, nor did Uthman tell a lie about the Prophet ﷺ, but that day when I was afflicted by it, I became angry and forgot to say them.

Abdullah bin Umar reported the Messenger of Allah ﷺ as saying: when a slave acts sincerely towards his master and worship Allah well, he will have a double reward.

Narrated Abdullah Ibn Abbas: Ikrimah said: A group of people from Iraq said: Ibn Abbas, what is your opinion about the verse in which we have been commanded whatever we have been commanded, but no one acts upon it? The word of Allah, Most High, reads: "O ye who believe! Let those whom your right hands possess, and the (children) among you, who have not come of age, ask your permission (before) they enter your presence on three occasions: before morning prayer, while you are undressing for the noonday heat, and after late-night prayer. These are your three times of undress; outside those times it is not wrong for you or for them to move about. " Al-Qa'nabi recited the verse up to "full of knowledge and wisdom". Ibn Abbas said: Allah is Most Clement and Most Merciful to the believers. He loves concealment. The people had neither curtains nor curtained canopies in their houses. Sometimes a servant, a child or a female orphan of a man entered while the man was having sexual intercourse with his wife. So Allah commanded them to ask permission in those times of undress. Then Allah brought them curtains and all good things. But I did not see anyone following it after that. Abu Dawud said: The tradition of Ubaid Allah and of Ata, weakens this tradition.

Narrated Anas ibn Malik: The Messenger of Allah ﷺ came to some children who were playing: He saluted them.

Narrated Abdullah ibn Umar: The Prophet ﷺ said: When one of the Jews greets you saying: Death may come upon you, reply: The same to you. Abu Dawud said: Malik bin Adb Allah bin Dinar transmitted it in a similar manner, and al-Thawri transmitted it from Abdullah bin Dinar. He said in this version: The same to you.

Abu Lubabah said: The Messenger of Allah ﷺ prohibited killing the jinnan (small snakes) that are in the house, except the one which have two streaks and the one with small tail, for they obliterate the eyesight and cause miscarriage.

Narrated Abu Usayd al-Ansari: Abu Usayd heard the Messenger of Allah ﷺ say when he was coming out of the mosque, and men and women were mingled in the road: Draw back, for you must not walk in the middle of the road; keep to the sides of the road. Then women were keeping so close to the wall that their garments were rubbing against it.