Battle of Badr first was Muhammad, who was transformed overnight from a Meccan outcast into a major leader. Marshall Hodgson adds that Badr forced the other Arabs to "regard the Muslims as challengers and potential inheritors to the prestige and the political role of the [Quraish]." Shortly thereafter he expelled the Banu Qaynuqa, one of the Jewish tribes at Medina that had been threatening his political position, and who had assaulted a Muslim woman which led to their expulsion for breaking the peace treaty. At the same time Abd-Allah ibn Ubayy, Muhammad's chief opponent in Medina, found his own position seriously weakened. Henceforth,
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