Musnad Ahmad 30:234

Sufyan narrated to us, from Ziyad ibn Sa'd, from Hilal ibn Abi Maymunah, from Abu Maymunah, from Abu Hurayrah: The Prophet, may Allah bless him and grant him peace, gave a man, a woman, and a son of theirs a choice. He gave the boy the choice, and the Messenger of Allah, may Allah bless him and grant him peace, said: "O boy, this is your father, and this is your mother; choose."