(Imām Bukhārī narrates): Ali bin Abdullah narrated to us, he said: Sufyan narrated to us from Amr, and he heard from Hazrat Jabir (may Allah be pleased with him) that

a man entered on the day of Friday at the time when the Prophet ﷺ was delivering the sermon. He said to him: Have you prayed? He said: No. He said: Then stand up and pray.