صحيح البخاري

Narrated Ibn Shihab:

Once `Umar bin `Abdul `Aziz delayed the `Asr prayer a little. `Urwa said to him, "Gabriel descended and led the prayer in front of the Prophet (ﷺ) " On that `Umar said, "O `Urwa! Be sure of what you say." "Urwa, "I heard Bashir bin Abi Masud narrating from Ibn Masud who heard Allah's Messenger (ﷺ) saying, 'Gabriel descended and led me in prayer; and then prayed with him again, and then prayed with him again, and then prayed with him again, and then prayed with him again, counting with his fingers five prayers."