Narrated An-Nazzal
Ali came to the gate of the courtyard (of the Mosque) and drank (water) while he was standing and said, "Some people dislike to drink while standing, but I saw the Prophet (ﷺ) doing (drinking water) as you have seen me doing now."
Narrated An-Nazzal bin Sabra
`Ali offered the Zuhr prayer and then sat down in the wide courtyard (of the Mosque) of Kufa in order to deal with the affairs of the people till the `Asr prayer became due. Then water was brought to him and he drank of it, washed his face, hands, head and feet. Then he stood up and drank the remaining water while he was standing. and said, "Some people dislike to drink water while standing thought the Prophet did as I have just done."
Narrated Ibn `Abbas
The Prophet (ﷺ) drank Zamzam (water) while standing.