Musannaf Ibn Abi Shayba 13:2990

Abu Bakr narrated to us, he said: Waki' narrated to us, he said: Al-Rabi' narrated to us, from Al-Hasan, he said: The Messenger of Allah (may Allah bless him and grant him peace) said: "Render the trust, and do not betray the one who betrayed you."