QUERY
Which types of water should we stand and drink, for example, left over water that a Muslim drank, water from a fountain, left over water of wudhu, and Zam Zam water. Should one stand and drink all these types of water or not?
THE ANSWER:
One may stand and drink Zam Zam and the remainder water of wudhu. The reason that people made a water fountain is because usually there is a lot of dirt under it and they don’t find the opportunity to sit. One should not stand and drink the water which another Muslim drank from.
Answer by Sayyidi Mufti Azam e Hind Imam Mustafa Rida Khan - Translated by Mawlana Afthab Cassim Ridwi


