Nazzal bin Samurah said: Ali asked for water and he drank it while standing. He then said: some people disapprove of doing this (drinking while standing ), but I saw the Messenger of Allah ﷺ doing as I have done.
Hadith Referenceسنن ابي داود / كتاب الأشربة / 3718
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح بخاري (5615)