Musannaf Ibn Abi Shaybah

Hazrat Shu’bah, may Allah have mercy on him, says that Hazrat Hakam said to me: Ibn Abi Layla came to me and asked, “A person had a debt upon another, and he gifted it to him. Can he take it back?” I replied, “No.” I asked Hazrat Hammad, and he said, “Why not? He can take it back.”