Musannaf Ibn Abi Shaybah 38724 — the first to do a thing, and who did

Maymun said: When this verse of the Qur'an was revealed, "And those who accuse chaste women and then do not bring four witnesses, flog them with eighty lashes and never accept their testimony" [Al-Nur: 4], a man said: If a man sees his wife in a condition that is unbearable for him, is he to go and start gathering four men? By then that man will have finished his business. And if he mentions it, he will be flogged, his testimony will not be accepted, and he will be counted among the wicked? Upon this the verse of li'an was revealed. The man who had said this was himself the first to be afflicted with the ruling of li'an.