Yahya related to us from Malik from Ibn Shihab from Humayd ibn
Abd ar-Rah man ibn Awf and from Muhammad ibn an-Numan ibn Bashir that
they related to him that an-Numan ibn Bashir said that his father
Bashir brought him to the Messenger of Allah, may Allah bless him and
grant him peace, and said, "I have given this son of mine one of my
slaves." The Messenger of Allah, may Allah bless him and grant him
peace, said, "Have you given each of your children the same as this?"
He said, "No." The Messenger of Allah, may Allah bless him and grant
him peace, said, "Then take the slave back."
Muwatta Malik Book 36, Hadith 54