Musannaf Ibn Abi Shayba 18:1160

Abu Bakr narrated to us, he said: Husayn ibn Ali narrated to us, from Za'idah, from Abd al-Malik, from Warrad, from al-Mughirah, who said: It reached the Prophet, may Allah bless him and grant him peace, that Sa'd ibn Ubadah said: "If I found a man with her, I would strike him with the sword, not with the flat side." He said: So the Prophet, may Allah bless him and grant him peace, said: "Are you amazed at the jealousy of Sa'd? By Allah, I am more jealous than Sa'd, and Allah is more jealous than me. And because of the jealousy of Allah, He has forbidden immoralities, what is apparent of them and what is hidden."