Original sentence: After their expulsion from Medina, Banu Nadir, along with the other Jews living in Khaybar, understood that Muhammad might attack them again.Banu Nadir were wealthy and were lived in some of the best lands in Medina.Both of them were killed by order of Muhammad alongside the men of the Banu Qurayza.Huyayy ibn Akhtab attempted to recruit Banu Qurayza within Medina to fight against the Muslims.The Nadir chief Huyayy ibn Akhtab together with his son joined the Meccans and Bedouins besieging Medina during the Battle of the Trench.The dominating tribes were the two non-Jewish Arab tribes, Banu Aus and Banu Khazraj
Edited sentence: After the battle, Muhammad then attacked Banu Qurayza forcing them to surrender.After their expulsion from Medina, Banu Nadir, along with the other Jews living in Khaybar, were no longer allied with the Muslims under the Constitution of Medina.Afterwards, he gave the decision of the tribe's fate to an arbiter and so had killed virtually all the Banu Qurayza men.Banu Nadir were wealthy and lived in some of the best lands in Medina.During the battle, Muhammad found out and thwarted their attempted betrayal.He took their women and children as prisoners.The Nadir chief Huyayy ibn Akhtab with the Meccans helped  to recruit Banu Qurayza within Medina during the Battle of the Trench to fight against the Muslims.The other tribes were the two non-Jewish Arab tribes, Banu Aus and Banu Khazraj