Fatwa #439915 December 2001South Africa
Kindly explain the etiquette of drinking zam-zam water. Stand or sit, 1 or 3 sips, etc.
Answer
Zam-zam may be drunk standing or seated. Standing and drinking in 3 sips or
more whilst facing the Qiblah is preferable. Also, a short Du'aa could be
made before drinking Zam zam.
and Allah Ta'ala Knows Best