Liaison office of Grand Ayatullah Sayyid Ali Al Sistani (L.M.H.L) in London, Europe, North and South America.
2647. There are certain acts which are Mustahab while drinking water;
they are as follows:
Water should be drunk slowly as if it were sucked.
During daytime, one should drink water while standing.
One should say Bismillah, before drinking water and Al-hamdulillah after
drinking.
One should drink water in three sips.
One should drink water when one feels thirsty.
After drinking water, one should remember Imam Husayn (A.S.) and his
Ahlul Bayt (A.S.), and curse the enemies who slew him.
2648. It is unworthy to drink too much water; to drink water after
eating fatty food; and to drink water while standing during the night. It is
also unworthy to drink water with one's left hand; to drink water from the side
of a container which is cracked or chipped off, or from the side of its handle.