Battle of Badr the battle at Badr comes from traditional Islamic accounts, both hadiths and biographies of Muhammad, recorded in written form some time after the battle. There is little evidence outside of these of the battle. There are no descriptions of the battle prior to the 9th century. Prior to the battle, the Muslims and the Meccans had fought several smaller skirmishes in late 623 and early 624. Badr, however, was the first large-scale engagement between the two forces. Advancing to a strong defensive position, Muhammad's well-disciplined force broke the Meccan lines, killing several important Quraishi leaders including the Muslims' chief antagonist
Military career of Muhammad in their favour. Afterwards the two armies exchanged arrow fire, before finally clashing. According to the Quran, thousands of angels descended from heaven and participated in the battle, being instructed by Allah to "smite the [Meccan warrior's] necks and smite of them each finger." According to another Quranic verse, Allah fought and killed the Meccans representatively for the Muslim warriors. The Meccan army eventually collapsed soon after the horse of Abu Jahl was brought down, resulting in the first major Muslim victory. This victory must not so much be ascribed to divine intervention as is done in the Islamic sources,