Adultery

Narrated Abu Huraira: The Prophet (peace be upon him) said, “If a lady slave commits illegal sexual intercourse and she is proved guilty of illegal sexual intercourse, then she should be flogged (fifty stripes) but she should not be admonished; and if she commits illegal sexual intercourse again, then she should be flogged again but should not be admonished; and if she commits illegal sexual intercourse for the third time, then she should be sold even for a hair rope.”
Sahih Al-Bukhari – Book 82 Hadith 823

Narrated Abu Huraira: The Prophet (peace be upon him) said, “The one who commits an illegal sexual intercourse is not a believer at the time of committing illegal sexual intercourse and a thief is not a believer at the time of committing theft and a drinker of alcoholic drink is not a believer at the time of drinking. Yet, (the gate of) repentance is open thereafter.”
Sahih Al-Bukhari – Book 82 Hadith 801

Narrated Sa’id bin Jubair: I said to Ibn ‘Umar, “If a man accuses his wife of illegal sexual intercourse (what is the judgment)?” He said, “Allah’s Prophet separated the couple of Bani ‘Ajlan (when the husband accused his wife for an illegal sexual intercourse). The Prophet (peace be upon him) said, ‘Allah knows that one of you two is a liar; so will one of you repent?’ But they refused. He then again said, ‘Allah knows that one of you two is a liar; so will one of you repent?’ But they refused, whereupon he separated them by divorce.” Aiyub (a sub-narrator) said: ‘Amr bin Dinar said to me, “In the narration there is something which I do not see you mentioning, i.e. the husband said, ‘What about my money (Mahr)?’ The Prophet (peace be upon him) said, ‘You are not entitled to take back money, for if you told the truth you have already entered upon her (and consummated your marriage with her) and if you are a liar then you are less entitled to take it back.’ ”
Sahih Al-Bukhari – Book 63 Hadith 261

Narrated Zaid bin Khalid and Abu Huraira: that Allah’s Apostle was asked about an unmarried slave-girl who committed illegal sexual intercourse. They heard him saying, “Flog her, and if she commits illegal sexual intercourse after that, flog her again, and on the third (or the fourth) offense, sell her.”
Sahih Al-Bukhari – Book 34 Hadith 435

Narrated Zaid bin Khalid Al Jihani: I heard the Prophet (peace be upon him) ordering that an unmarried person guilty of illegal sexual intercourse be flogged one-hundred stripes and be exiled for one year. Umar bin Al-Khattab also exiled such a person, and this tradition is still valid.
Sahih Al-Bukhari – Book 82 Hadith 818

Narrated Abu Dharr: I came to the Prophet (peace be upon him) while he was wearing white clothes and sleeping. Then I went back to him again after he had got up from his sleep. He said, “Nobody says: ‘None has the right to be worshipped but Allah’ and then later on he dies while believing in that, except that he will enter Paradise.” I said, “Even if he had committed illegal sexual intercourse and theft?” He said, “Even if he had committed illegal sexual intercourse and theft.” I said, “Even if he had committed illegal sexual intercourse and theft?” He said, “Even if he had committed illegal sexual intercourse and theft.” I said, “Even if he had committed illegal sexual intercourse and theft?” He said, “Even if he had committed illegal sexual intercourse and theft, in spite of the Abu Dharr’s dislikeness.” Abu ‘Abdullah said, “This is at the time of death or before it if one repents and regrets and says ‘None has the right to be worshipped but Allah.’ He will be forgiven his sins.”
Sahih Al-Bukhari – Book 72 Hadith 717

Narrated Abdullah: Allah’s Apostle said, “The blood of a Muslim who confesses that none has the right to be worshipped but Allah and that I am His Apostle, cannot be shed except in three cases: In Qisas for murder, a married person who commits illegal sexual intercourse and the one who reverts from Islam (apostate) and leaves the Muslims.”
Sahih Al-Bukhari – Book 83 Hadith 17

Narrated ‘Aisha: Allah’s Apostle said, “O followers of Muhammad! There is none, who has a greater sense of Ghira (self-respect) than Allah, so He has forbidden that His slave commits illegal sexual intercourse or His slave girl commits illegal sexual intercourse. O followers of Muhammad! If you but knew what I know, you would laugh less and weep more!”
Sahih Al-Bukhari – Book 62 Hadith 148

Narrated Ubada bin As Samit: Allah’s Apostle (peace be upon him) said to us while we were in a gathering, “Give me the oath (Pledge of allegiance) for: (1) Not to join anything in worship along with Allah, (2) Not to steal, (3) Not to commit illegal sexual intercourse, (4) Not to kill your children, (5) Not to accuse an innocent person (to spread such an accusation among people), (6) Not to be disobedient (when ordered) to do good deeds. The Prophet (peace be upon him) added: Whoever amongst you fulfill his pledge, his reward will be with Allah, and whoever commits any of those sins and receives the legal punishment in this world for that sin, then that punishment will be an expiation for that sin, and whoever commits any of those sins and Allah does not expose him, then it is up to Allah if He wishes He will punish him or if He wishes, He will forgive him.” So we gave the Pledge for that.
Sahih Al-Bukhari – Book 89 Hadith 320

Narrated Abdullah: A man said, “O Allah’s Apostle! Which sin is the greatest in Allah’s Sight?” The Prophet (peace be upon him) said, “To set up a rival unto Allah though He Alone created you.” The man said, “What is next?” The Prophet (peace be upon him) said, “To kill your son lest he should share your food with you.” The man said, “What is next?” The Prophet (peace be upon him) said, “To commit illegal sexual intercourse with the wife of your neighbor.” So Allah revealed in confirmation of this narration:
“And those who invoke not with Allah, any other god Nor kill, such life as Allah has forbidden except for just cause nor commit illegal sexual intercourse. And whoever does this shall receive the punishment.” (25.68)
Sahih Al-Bukhari – Book 83 Hadith 1