Musannaf Ibn Abi Shaybah 34122 — Reports on Abu Bakr al-Siddiq

Abu Salih al-Hanafi (may Allah have mercy on him) said that Sayyiduna Ali (may Allah be pleased with him) said: It was said to me and to Sayyiduna Abu Bakr (may Allah be pleased with him) on the day of the Battle of Badr: "With one of you is Jibril (peace be upon him), and with the other is Mika'il. And Israfil is a mighty angel who is present for the fighting," or he said: "who stands in the rank."