Sunan Abi Dawud 4458

Narrated An-Nu'man ibn Bashir: Habib ibn Salim said: A man called AbdurRahman ibn Hunayn had intercourse with his wife's slave-girl. The matter was brought to an-Nu'man ibn Bashir who was the Governor of Kufah. He said: I shall decide between you in accordance with the decision of the Messenger of Allah (ﷺ). If she made her lawful for you, I shall flog you one hundred lashes. If she did not make her lawful for you, I shall stone you to death. So they found that she had made her lawful for him. He, therefore, flogged him one hundred lashes. Qatadah said: I wrote to Habib b. Salim; so he wrote this (tradition) to me