Musannaf Ibn Abi Shayba 13:1036

Abu Bakr narrated to us, he said: Ibn Abi Za’idah narrated to us, from ‘Abd al-Jabbar ibn ‘Abbas, from ‘Awn ibn Abi Juhayfah, that his father bought a slave of his who was a cupper. He broke his cupping instruments and said: The Prophet, may Allah bless him and grant him peace, forbade the price of blood.