Sayyiduna Hudhayfah (may Allah be pleased with him) narrated: The Prophet (peace and blessings be upon him) said to Sayyiduna Abu Bakr (may Allah be pleased with him): "If you were to find a man with Umm Ruman, what would you do?" He said: "By Allah! I would deal harshly with him." The Prophet (peace and blessings be upon him) asked: "O Umar, what would you do?" He replied: "By Allah! I would kill him. I would say: May Allah Almighty curse this wretch, for he is vile." The narrator said: Then this verse was revealed concerning this: "And those who accuse their wives and have no witnesses except themselves."
Al-Bazzar recorded it, and its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب التفسير / 11195