This tradition has also been narrated by Abu Salim al-JAishahni on the authority of Abd Allaah bin Amr. He narrated this tradition at the time when he besieged the fort at the gate of Alyun. Abu Dawud said: The fort of Alyun lies at the mountain in Fustat. Abu Dawud said: The kunyah (surname) of Shaiban bin Umayyah is Abu Hudhaifah.