Ibn Tulun, when he built his world-famous mosque in Egypt, at one end of it there was a place for ablutions and a dispensary also as annexes. The dis… - Al-Maqrizi

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Ibn Tulun, when he built his world-famous mosque in Egypt, at one end of it there was a place for ablutions and a dispensary also as annexes. The dispensary was well equipped with medicines and attendants. On Fridays there used to be a doctor on duty there so that he might attend immediately to any casualties on the occasion of this mammoth gathering.