Sayyiduna Abu Musa Ash'ari (may Allah be pleased with him) narrates that when Allah Almighty caused the Banu Hawazin to be defeated at Hunayn, the Messenger of Allah appointed Sayyiduna Abu Amir Ash'ari (may Allah be pleased with him) over a cavalry detachment to pursue the fleeing polytheists. He set out after them, and I was with him. Sayyiduna Abu Amir's (may Allah be pleased with him) horse quickly took him ahead of the rest, and he caught up with Ibn Duraid. But Ibn Duraid killed Sayyiduna Abu Amir (may Allah be pleased with him) and seized his flag. Then I pursued Ibn Duraid, killed him, and took the flag back into my possession, and I returned with the people. The Messenger of Allah saw the flag being carried and said: "O Abu Musa! Has Abu Amir been killed?" I replied: "Yes, O Messenger of Allah!" I saw the Messenger of Allah (peace and blessings be upon him) raising both his hands and supplicating: "O Allah, make Your beloved servant Ubaid Abu Amir among those on the Day of Resurrection who have many righteous deeds and countless elevated ranks."