It is narrated from Sayyiduna al-Mughirah bin Shu'bah (may Allah be pleased with him) that he said: "When the Messenger of Allah (peace and blessings be upon him) passed away, Sayyiduna Abu Bakr al-Siddiq (may Allah be pleased with him) sent me to subdue the people of al-Nujayr. Then I took part in the Battle of Yamamah, after which I was part of the conquests of Syria along with the Muslims. Then I was present at the Battle of Yarmuk, and on that day one of my eyes was injured (lost). Then I took part in the Battle of Qadisiyyah and went to Rustam as the envoy of Sayyiduna Sa'd bin Abi Waqqas (may Allah be pleased with him). During the caliphate of Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) I achieved several conquests; I conquered Hamadhan and also took part in the Battle of Nahawand. I was the commander of the left wing (maysarah) of the army of Nu'man bin Muqarrin (may Allah be pleased with him). Sayyiduna Umar (may Allah be pleased with him) had written an order that if Nu'man were martyred, Hudhayfah would be the commander, and if he too were martyred, al-Mughirah would be the commander. I was the first person to establish the diwan (the official register and administration) of Basrah, and I gathered the people so that they could be given their stipends. I was governor of Kufah on behalf of Sayyiduna Umar bin al-Khattab (may Allah be pleased with him), and I was still in that office when he was martyred. Then I was also governor of Kufah during the time of Sayyiduna Mu'awiyah (may Allah be pleased with him)."