Hazrat Bastam bin Muslim (may Allah have mercy on him) narrates that the Messenger of Allah (peace and blessings be upon him) appointed Hazrat Amr bin Al-Aas (may Allah be pleased with him) as the commander of an army in which Hazrat Abu Bakr and Hazrat Umar (may Allah be pleased with them) were also present. When they returned, Hazrat Abu Bakr (may Allah be pleased with him) and Hazrat Umar (may Allah be pleased with him) complained about Hazrat Amr (may Allah be pleased with him). So the Messenger of Allah (peace and blessings be upon him) said: After me, neither of you will be appointed as a commander over anyone.