Battle of Badr Abu Jahl. For the early Muslims the battle was the first sign that they might eventually defeat their enemies among the Meccans. Mecca at that time was one of the richest and most powerful cities in Arabia, fielding an army three times larger than that of the Muslims. The Muslim victory also signaled to the other tribes that a new power had arisen in Arabia and strengthened Muhammad's position as leader of the often fractious community in Medina. The battle also established the position of Ali ibn Abi Talib as the best fighter among the Muslims, as he alone killed
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