The Mudabbar

Malik :: Book 41 : Hadith 41.6.20

Malik related to me from Rabia ibn Abi Abd ar-Rahman that Umar ibn al-Khattab spoke about a man who went out with his wife's slave-girl on a journey and had intercourse with her and then the wife became jealous and mentioned that to Umar ibn al-Khattab. Umar questioned him about it. He said, "She gave her to me." Umar said, "Bring me a clear proof or I will stone you." Rabia added, "The wife confessed that she had given her to him."

Source materials are from the University of Southern California MSA site
Hadith eBooks converted from Imaan Star