Musnad Ahmad Hadith 27240

It is narrated from Wa'il (may Allah be pleased with him) that once a woman set out to pray, and on the way she met a man. He covered her with his clothes and fulfilled his desire with her and then disappeared. Meanwhile, another man came near the woman. She said to him, "A man has done such and such with me." That person went to search for him. In the meantime, a group of Ansar passed by the woman and stopped. The woman told them the same thing, "A man has done such and such with me." Those people also set out in search and brought back the man who had gone out to look for the wrongdoer, and they presented him before the Prophet (ﷺ). The woman also said, "This is the one." When the Prophet (ﷺ) ordered him to be stoned, the real wrongdoer stepped forward and said, "O Messenger of Allah! By Allah, I am that man." Upon this, the Prophet (ﷺ) said to the woman, "Go, Allah has forgiven you." And he praised that man. Someone asked, "O Messenger of Allah! Why do you not stone him?" The Prophet (ﷺ) said, "He has repented in such a way that if all the people of Madinah repented like this, it would be accepted from them."