When my vindication came down (Al-Qur’an, 24:11 ff) the Prophet mounted the pulpit and mentioned that. Then when he came down from the pulpit he ordered that the two men and the woman* should be given the prescribed beating.
Abu Dawud transmitted it.
*The men are said to have been Mistah b. Uthatha and Hassan b. Thabit, and the woman Hamna daughter of Jahsh. Ibn 'Abd al-Barr, Istiab. p. 285, says Mistah was beaten, but he does not commit himself on p. 127 about Hassan, or on p. 714 about Hamna.
Ibn ‘Abbas told that a man of B. Bakr b. Laith came to the Prophet and made a statement four times that he had committed fornication with a woman, so he had a hundred lashes administered to him. The man had not been married. He then asked him to produce proof again the woman, and she said, “I swear by God, Messenger of God, that he has lied.” Then he was given the prescribed number of lashes for falsehood.
Nafi' said he was informed by Safiya daughter of Abu ‘Ubaid that one of the Caliph’s slaves had intercourse with a girl who was among the fifth of the booty, forcing her to it against her will, and deflowered her. ‘Umar had him beaten but did not have her beaten because he had forced her against her will.