Sahih al-Bukhari 3792

Muhammad ibn Bashshar narrated to us: Ghundar narrated to us: Shuʿba narrated to us. He said: I heard Qatada narrate from Anas ibn Malik, from Usayd ibn Hudayr, that a man from the Helpers said, “Messenger of Allah, will you not appoint me as you appointed so-and-so?” He said, “After I am gone, you will encounter favoritism. Be patient until you meet me at the Pool.”