Ibn Abbas radiyallahu anhu says, Rasoolullah sallallahu alaihe wasallam drank Zam-zam water while he was standing

Amr ibn Shu'aib radiyallahu anhu relates from his father, and he from his (Amr's) grandfather, that he said, I had seen Rasoolullah sallallahu alaihe wasallam drinking water whilst standing and also whilst sitting.

Ibn Abbas radiyallahu anhu says, I gave Rasoolullah sallallahu alaihe wasallam Zam-zam water to drink. He stood and drank it

Nazzaal ibn Sabrah rahmatullahi alaihe says that while he was with Sayyidina Ali in the courtyard (of the Masjid at Kufah), water was brought in a clay pot to him. He took some water in his palms, washed his hands, gargled his mouth, put water in his nose (cleaned it), then made masah of his face, hands and head. Thereafter he stood and drank from it. Then said, This is the wudhu of a person who is in a state of wudhu. I had observed Rasoolullah sallallahu alaihe wasallam perform (wudhu) in this manner.

Sayyidina Anas ibn Malik radiyallahu anhu relates that Rasoolullah sallallahu alaihe wasallam drank water in three breaths (i.e. in three gulps/sips) and used to say, It is more pleasing and satisfying in this manner

Sayyidina Ibn Abbas radiyallahu anhu says, Whenever Rasoolullah sallallahu alaihe wasallam drank water, he drank it in two breaths.

Sayyidatina Kabshah bint Thabit radiyallahu anha narrates, Rasoolullah sallallahu alaihe wasallam visited my home. A leather water bag was hanging there, Rasoolullah sallallahu alaihe wasallam stood and drank water from the mouth of the water bag. I got up and cut out the mouth (portion) of the bag.

Sayyidina Thumaamah ibn Abdullah radiyallahu anhu says, Sayyidina Anas ibn Malik drank water in three breaths, and claimed that Rasoolullah sallallahu alaihe wasallam also drank water in the same manner.

Sayyidina Anas radiyallahu anhu reports, Rasoolullah sallallahu alaihe wasallam went to my mother, Umme Sulaim's house. A leather water bag was hanging there. Rasoolullah sallallahu alaihe wasallam stood and drank water from it. Umme Sulaim radiyallahu anha stood up and cut off that portion of the bag

Sayyidina Sa'd ibn Abi Waqqaas radiyallahu anhu says, Rasoolullah sallallahu alaihe wasallam drank water while standing.