The mosque of 'Amr is highly venerated and widely celebrated. The Friday service is held in it and the road runs through it from east to west. The madrasas [college mosques] of Cairo cannot be counted for multitude. As for the Maristan [hospital], which lies "between the two castles" near the mausoleum of Sultan Qala'un, no description is adequate to its beauties. It contains an innumerable quantity of appliances and medicaments, and its daily revenue is put as high as a thousand dinars.