Sunan An-Nasa'i
Hadith #494
It was narrated from Ibn Shihab that 'Umar bin 'Abdul-'Aziz delayed the 'Asr prayer a little. 'Urwah said to him:""Jibril came down and led the Messenger of Allah (ﷺ) in prayer."" 'Umar said: ""Watch what you are saying, O 'Urwah!"" He said: ""I heard Bashir bin Abi Mas'ud say: 'I heard Abu Mas'ud say: ""I heard the Messenger of Allah (ﷺ) say: 'Jibril came down and led me in prayer, and I prayed with him, then I prayed with him, then I prayed with him, then I prayed with him, then I prayed with him - and he counted off five prayers on his fingers