Smak bin Hrb bin Aws سماك بن حرب بن أوس · The Book of the Prayer

"A man came to the Prophet and asked him about the times of the prayer. He said: 'Pray with us for two days.' When the sun passed its zenith he commanded Bilal to call the Adhan, then he commanded him to give the Iqamah for Zuhr; then he commanded him to give the Iqamah for 'Asr when the sun was high and clearly white. Then he commanded him to give the Iqamah for Maghrib when the sun had set; then…

He was sitting on the cushions of 'Umar bin 'Abdul-'Aziz when he was the leader over Al-Madinah, and with him was 'Urwah bin Zubair. "umar delayed 'Asr somewhat, and 'Urwah said to him: "Jibril came down and led the Messenger of Allah in prayer." 'Umar said to him: "Know what you are saying, O 'Urwah!" he said: "I heard Bashir bin Abu Mas'ud saying, 'I heard Abu Mas'ud saying, "I heard the Messenger of Allah saying, 'Jibril came down and…