Maharab bin Dithar محارب بن دثار · The Book of Leading the Prayer (Al-Imamah)

"I heard 'Abdullah bin Yazid delivering a Khutbah. He said: 'Al-Bara, who was no liar,told us that when they prayed with the Messenger of Allah (ﷺ) would raise his head from bowing and they would remain standing until they saw him prostrate, then they would prostrate."'