Siege of Banu Qurayza

Immediately after the Battle of the Trench, the Prophet marched against Banu Qurayza, who had broken their treaty by conspiring with the Confederates to attack the Muslims from within Medina during the siege. After a 25-day siege, they surrendered and asked for Sa'd ibn Mu'adh, their former ally, to judge their fate. Sa'd ruled according to the Torah's own law for treaty-breakers: the men were executed, and the women and children were taken as captives. Sa'd died shortly after from his battle wound.