JEDDAH: The tradition of serving Zamzam water to pilgrims is among the oldest professions linked to the Two Holy Mosques, dating back thousands of years to the rediscovery of the Zamzam Well by Abdul-Muttalib bin Hashim, the grandfather of Prophet Muhammad. The responsibility for caring for the well and serving visitors later passed to his son Al-Abbas, establishing a service that became central to the Hajj and Umrah experience for centuries, according to the Saudi Press Agency.