when news of the muslims' victory at heliopolis reached fayoum, its byzantine garrison under the command of domentianus evacuated the city during the night and fled to abuit. from abuit, they fled down the nile to nikiu without informing the people of fayoum and abuit that they were abandoning their cities to the enemy. when news of this reached 'amr, he ordered a body of his troops to cross the nile and invade fayoum and abuit. the muslim soldiers captured the entire province of fayoum without any resistance from the byzantines.