Sahih Muslim Book 17, Hadith Number 4205.

Sulaiman b. Buraida reported on the authority of his father that Ma,iz b. Malik came to Allah’s Apostle (may peace be upon him) and said to him: Messenger of Allah, purify me, whereupon he said: Woe be upon you, go back, ask forgiveness of Allah and turn to Him in repentance. He (the narrator) said that he went back not far, then came and said: Allah’s Messenger, purify me. whereupon Allah’s Messenger (may peace be upon him) said: Woe be upon you, go back and ask forgiveness of Allah and turn to Him in repentance. He (the narrator) said that he went back not far, when he came and said: Allah’s Messenger, purify me. Allah’s Apostle (may peace be upon him) said as he had said before. When it was the fourth time, Allah’s Messenger (may, peace be upon him) said: From what am I to purify you? He said: From adultery, Allah’s Messenger (may peace be upon him) asked if he had been mad. He was informed that he was not mad. He said: Has he drunk wine? A person stood up and smelt his breath but noticed no smell of wine. Thereupon Allah’s Messenger (may peace be upon him) said: Have you committed adultery? He said: Yes. He made pronouncement about him and he was stoned to death. The people had been (divided) into two groups about him (Ma’iz). One of them said: He has been undone for his sins had encompassed him, whereas another said: There is no repentance more excellent than the repentance of Ma’iz, for he came to Allah’s Apostle (may peace be upon him) and placing his hand in his (in the Holy Prophet’s) hand said: Kill me with stones. (This controversy about Ma’iz) remained for two or three days. Then came Allah’s Messenger (may peace be upon him) to them (his Companions) as they were sitting. He greeted them with salutation and then sat down and said: Ask forgiveness for Ma’iz b. Malik. They said: May Allah forgive Ma’iz b. Malik. Thereupon Allah’s Messenger (may peace be upon him) said: He (Ma’iz) has made such a repentance that if that were to be divided among a people, it would have been enough for all of them. He (the narrator) said: Then a woman of Ghamid, a branch of Azd, came to him and said: Messenger of Allah, purify me, whereupon he said: Woe be upon you ; go back and beg forgiveness from Allah and turn to Him in repentance. She said: I find that you intend to send me back as you sent back Ma’iz. b. Malik. He (the Holy, Prophet) said: What has happened to you? She said that she had become pregnant as a result of fornication. He (the Holy Prophet) said: Is it you (who has done that)? She said: Yes. He (the Holy Prophet) said to her: (You will not be punished) until you deliver what is there in your womb. One of the Ansar became responsible for her until she was delivered (of the child). He (that Ansari) came to Allah’s Apostle (may peace be upon him) and said the woman of Ghamid has given birth to a child. He (the Holy Prophet) said: In that case we shall not stone her and so leave her infant with none to suckle him. One of the Ansar got up and said: Allah’s Apostle, let the responsibility of his suckling be upon me. She was then stoned to death.