Musannaf Ibn Abi Shayba 3:2446

Affan narrated to us, he said: Hammad bin Salamah narrated to us, from Ibn al-Zubayr, from Ibn al-Hanafiyyah, from Ammar, who said: I came to the Prophet, may Allah bless him and grant him peace, while he was praying, and I greeted him. He said: So he returned the greeting to me.