 Several additions and restorations were made during Ottoman reign in Egypt , many of which were completed under the direction of Abd al @-@ Rahman Katkhuda who nearly doubled the size of the mosque . Three gates were added by Katkhuda , the Bab al @-@ Muzayinīn , which became the main entrance to the mosque , the Bab al @-@ Shurba , and the Bab al @-@ Sa 'ayida . Several riwaqs were added , including one for the blind students of al @-@ Azhar , as well as refurbished during the Ottoman period . Katkhuda also added an additional prayer hall south of the original Fatimid hall , with an additional mihrab , doubling the total prayer area . 
