أمير المؤمنين
At least four roofed markets, each specializing in a type of merchandise, were built during Abd al-Aziz's reign. In August/September 688, he also built the Qantara bridge over the "Khalij Amir al-Mu'minin" (Canal of the Commander of the Faithful), which passed through Fustat and connected Heliopolis (Ayn Shams) to the Nile. The bridge, located in the Hamra al-Quswa neighborhood, was likely meant to serve a major circulatory road in Fustat and its remains were still visible in the 12th century or later. It was one of a number of bridges constructed in the city by Abd al-Aziz.