The water of Zamzam is the best on earth; it is considered a kind of food, a cure for illness and is a destination for visitors to the Haram Mosque. It is more than five thousand years old and is related to the story of the Prophet Ibrahim, his wife Hajar as well as his son Ismail -peace and blessings upon them. Much has been passed down about the significance and importance of the Zamzam water. The Prophet -peace and blessings be upon him- said: "The best water on earth is the water of Zamzam; it is a kind of nourishment and a cure for illness". This spring is located in the Haram Mosque and is 21 meters away from the Kaaba. The depth of the spring is 30 meters; It pumps about 18.5 liters per second.
When drinking, one first says "Bismillah" before putting it in the mouth and drinking it in three gulps, between which one stops. Those who can should drink as much Zamzam water as possible so that they are completely satiated with it. Doing all this is mustahabb (popular), including drinking the zamzam water while sitting, although it is also permitted to drink it while standing. And of course, one also says "al-hamdulillah" (praise be to Allah) when one has drunk it.
 Faakhi (Akhbar Makkah) no. 1106, Tabarani no. (11/98) (11167)