He is reported to have been a clothing importer who studied at al - Azhar University , a top Sunni institution in Cairo .
As of 2015 , Abu Osama is said to be 42 years old .
Abu Osama is reported to have been a clothing importer who studied at al - Azhar University , a top Sunni institution in Cairo .
As of 2015 , Abu Osama is said to be 42 years old .