Assistance soon came when al-Afshin marched east from Barqah, arriving in al-Fustat near the end of July 831. After waiting for the seasonal flooding of the Nile to subside, al-Afshin and Isa set out, engaged the forces of the rebel leader Ibn Ubaydas al-Fihri and defeated them. Al-Afshin then proceeded to fight his way through the Nile Delta, eventually entering Alexandria in January 832, while Isa for his part returned to Fustat, then marched out again and scored a victory against the rebels at Tumayy.[6]