Enlightened by impressive chandeliers which are applied in countless small glass lamps, the nave opens into the south portico of the courtyard by a monumental delicately carved wooden door, made in 1828 under the reign of the Husainids. This sumptuous door, which has four leaves richly carved with geometric motifs embossed on the bottom of foliages and interlacing stars, is decorated at the typanum by a stylised vase from which emerge winding stems and leaves. The other doors of the prayer hall, some of which date from the time of the Hafsids, are distinguished by their decoration which consists essentially of geometric patterns (hexagonal, octagonal, rectangular patterns, etc.).