Badr al-Hammami mentioned by al-Tabari. This success was soon followed by the decisive victory of the Abbasid army at the Battle of Hama in November, which led to the capture and execution of Husayn and the senior Qarmatian leaders. In autumn 904, the Abbasids under Muhammad ibn Sulayman al-Katib launched a campaign to recover Egypt and end the Tulunid regime. When Muhammad arrived at the borders of Egypt in November, Badr went over to him. The defection of the most senior commander was soon followed by other Tulunid officers, and when Harun ibn Khumarawayh was killed by one of his own men,
Battle of al-Qādisiyyah and led a group of Mubarizuns, from his Syrian contingent who were also the veterans of Battle of Yarmouk, through the Sassanids' right center towards Rostam's headquarter. Rostam again personally led a counterattack against the Muslims, but no breakthrough could be achieved. At dusk, the two armies pulled back to their camps. On 18 November, Rostam wanted a quick victory, before more Muslim reinforcements could arrive. The Elephant corps was once again in the front of the Sassanid army, giving him the advantage. Pressing this advantage, Rostam ordered a general attack along the Muslim front, using his full force. All