The only building left of the Ayyubid building where there is an inscription dating to the construction and was supplied with water through the Canal, renewed Prince Alaa Al-Din Al-Basiri in 666 AH / 1268 AD and called on behalf of the Al-Mansawiya Al-Sakayyah the proportion of Sultan Al-Mansour Qalawun. The traveler Ibn Fadlullah al-'Umari described it in 746 AH / 1345 AD, beside this hallway, there is the door of purity. It includes two Taharites, one for women and the other for men. The male Taharite includes twenty-three houses and a large fountain.
It is said that the women’s cleaner is above men’s cleaner. During the Ottoman time, it was called “cleaner”, and it was renovated and expanded several times by the Supreme Islamic Council and then recently by the Reconstruction Committee of Awqaf, in order to keep up with the increase of the number of worshipers, especially in Ramadan.