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 Badr him seeing "the camels of [Medina] laden with certain death"). This further demoralized the Quraish, as Arab battles were traditionally low-casualty affairs, and set off another round of bickering among the Quraishi leadership. However, according to Arab traditions Amr ibn Hishām quashed the remaining dissent by appealing to the Quraishi's sense of honor and demanding that they fulfill their blood vengeance. The battle began with champions from both armies emerging to engage in combat. Three of the Medinan Ansar emerged from the Muslim ranks, only to be shouted back by the Meccans, who were nervous about starting any unnecessary feuds