It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that when Sayyiduna Hilal bin Umayyah (may Allah be pleased with him) accused his wife of adultery, people began to say to him that now the Prophet (peace and blessings of Allah be upon him) will certainly have you flogged with eighty lashes. He said, "Allah is very just; He will save me from those eighty lashes because He knows that I saw (it) until I was certain, and I heard with my own ears until I was certain. By Allah! Allah will not let me be punished." Upon this, the verse of Li'an was revealed.