The central nave is groin-vaulted, each bay being separated from one another by pointed transverse arches with rectangular profiles. The nave arcades are carried on cruciform piers with an engaged column on each face, sitting on a raised plinth. The two aisles of the mosque are also groin-vaulted. Ibn Battuta noted that the Great Mosque had a white marble minbar (pulpit); it still exists today. There is a small mihrab in the mosque with an inscription dating from 1663, containing the name of Musa Pasha, a governor of Gaza during Ottoman rule.