‘Abd Allah (bin Mas’ud) said “We were in the mosque on the night of a Friday, suddenly a man from the Ansar entered the mosque”. And said “If a man finds a man along with wife and declares (about her adultery) you will flog him. Or if he kills you, you will kill him or if keeps silence he will keep silence in anger. I swear by Allaah, I shall ask the Apostle of Allaah(saws) about it”. On the next day he came to the Apostle of Allaah(saws) and said “If a man finds a man along with wife and declares (about her adultery) you will flog him. Or if he kills you, you will kill him or if keeps silence he will keep silence in anger.” He said “O Allaah, disclose”. He kept on praying until the verses regarding invoking curses (li’an) came down “As for those who accuse their wives but have no witnesses except themselves.” So, the man was first involved in this trial among the people. He and his wife came to the Apostle of Allaah(saws). They invoked curses on each other. The man bore witness before Allaah four times that the thing he said was indeed true. He then invoked curse of Allaah on him for the fifth time if he was a liar. She then wanted to invoke curses of Allaah on him. The Prophet (saws) said “Do not do that. Bust she refused and did so (i.e., invoked curses). When they returned he said “Perhaps she will give birth to a black child with curly hair.

Ibn ’Abbas (RAA) narrated that The Messenger of Allah (P.B.U.H.) said, “If anyone is killed and his killer is not known, or was killed with a stone, a whip or with a stick (i.e. killed by mistake but with a deliberate injury) his Diyah will be that of killing by mistake (manslaughter). As for whoever killed deliberately, retaliation is due (from the one who killed him). Anyone who tries to prevent taking Qisas (from the killer) may Allah curse him.” Related by Abu Dawud, An-Nasa’i and Ibn Majah with a strong chain of narrators.

“O women, give in charity and pray a great deal for forgiveness, for I have seen that you form the majority of the people of Hell.” A woman who was very wise said: “Why is it, O Messenger of Allah, that we form the majority of the people of Hell?” He said: “You curse a great deal and you are ungrateful to your husbands, and I have never seen anyone lacking in discernment and religion more overwhelming to a man of wisdom than you.” She said: “O Messenger of Allah, what is this lacking in discernment and religion?” He said: “The lack of discernment is the fact that the testimony of two women is equal to the testimony of one man; this is the lack of reason. And (a woman) spends several nights when she does not pray, and she does not fast in Ramadhan, and this is the lack in religion.”

"I heard Sa'eed bin Jubair say: 'I was asked about the two who engage in Li'an during the governorship of Ibn Az-Zubair - should they be separated? I did not know what to say, so I got up and went to the house of Ibn 'Umar and said: "O Abu 'Abdur-Rahman, should the two who engage in Li'an be separated?" He said: "Yes, Subhan Allah! The first one who asked about that was so-and-so the son of so-and-so who said: 'O Messenger of Allah, what do you think if a man among us sees his wife committing immoral actions, and if he speaks of it, he will be speaking of a grave matter, but if he keeps quiet, he will be keeping quiet about a grave matter?' He did not answer him, then after that, he came to him and said: 'I was tried with the matter that I asked you about, so Allah, the Mighty and Sublime, revealed these Verses in Surat An-Nur.: 'And for those who accuse their wives' until he reached: 'And the fifth (testimony) should be that the Wrath of Allah be upon her if he (her husband) speaks the truth.' So he started with the man, exhorting him, reminding him, and telling him that the punishment in this world was less severe than the punishment in the Hereafter. He said: 'By the One Who sent you with the truth, I am not lying.' Then he turned to the woman and exhorted her and reminded her. She said: 'By the One Who sent you with the truth, he is lying.' So he started with the man, and he bore witness four times by Allah that he was telling the truth, and the fifth time (he invoked) the curse of Allah upon himself if he was lying. Then he turned to the woman and she bore witness four times by Allah that he was lying, and the fifth time (she invoked) the wrath of Allah upon herself if he was telling the truth. Then he separated them."'"

"The Prophet (s.a.w) gave a Khutbah upon his she-camel, while I was under the front of her neck, and she was chewing her curd, with her saliva dripping between my shoulders. I heard him saying: 'Indeed Allah, Most Blessed and Most High, has given the right due to everyone deserving a right. So there is no will for an heir, the child is for the bed, and for the fornicator is the stone.'"

Hudhaifah was in al-Mada’in. He used to mention things which the Messenger of Allah (May peace be upon him) said to some people from among his Companions in anger. The people who heard from Hudhaifah would go to Salman and tell him what Hudhaifah said. Salman would say: Hudhaifah knows best what he says. Then they would come to Hudhaifah and tell him: We mentioned Salman what you said, but he neither testified you nor falsified you. So Hudhaifah came to salman who was in his vegetable farm, and said : Salman, what prevents you from testifying me of what I heard from the Messenger of Allah (May peace be upon him) ? Salman said: The Messenger of Allah (May peace be upon him) sometimes would be angry, and said in anger something to some of his Companions; he would be sometimes pleased and said in pleasure something to some of his Companions. Would you not stop until you create love of some people in the hearts of some people, and hatred of some people in the hearts of some people, and until you generate disagreement and dissension? You know that the Messenger of Allah (May peace be upon him) addressed, saying : If I abused any person of my people, or cursed him in my anger. I am one of the children of Adam : I become angry as they become angry. He (Allah) has sent me as a mercy for all worlds. (O Allah!) make them (Abuse or curse) blessing for them on the day of judgment! I swear by Allah. You should stop (mentioning these traditions), otherwise I shall writ to ‘Umar.

'A'isha reported that Abu Bakr cursed one of his slaves and the Prophet, may Allah bless him and grant him peace, said, "Abu Bakr! The cursers and the true! No, by the Lord of the Ka'ba," and he repeated that two or three times. That very same day Abu Bakr freed one of his slaves. The Prophet, may Allah bless him and grant him peace, came and said, "Do not do that again (i.e. curse someone)."

'Abdullah ibn 'Amr said, "Abu Mas'ud, what did you hear the Messenger of Allah, may Allah bless him and grant him peace, say about 'People who make false claims?" He replied, "I heard him say, 'A bad mount for a man' and I heard him say, 'Cursing a believer is like killing him.'"