Hashemite–Umayyad rivalry demoralized, and ended in a Muslim victory. From that day onwards, it is said that the rivalry between the two clans developed into a severe case of tribal animosity. Muhammad had ordered that those Hashimites who were fighting in the side of the Meccans at Badr, including his uncle Abbas ibn Abdul-Muttalib were not to be killed. Reacting to this, Abu Hudhayfa ibn 'Utba, a Muslim belonging to Banu Umayya, and a son and brother respectively of the Meccan warriors killed in the duels, remarked: "Shall we kill our fathers, brothers and children, and leave al-Abbas? By Allah! If I
Battle of the Bridge Battle of the Bridge The Battle of the Bridge or the Battle of al-Jisr () was a battle at the bank of the Euphrates river between Arab Muslims led by Abu Ubaid al-Thaqafi, and the Persian Sasanian forces led by Bahman Jaduya. It is traditionally dated to the year 634, and was the only major Sassanian victory over the invading Muslim armies. The Muslim forces had already taken Hira and assumed control of the surrounding Arab-inhabited areas of Mesopotamia, on the banks of the Euphrates. The fall of Hira shocked the Persians, as the "youthful Yazdgard, began to take the