وعن ابن عباس رضى الله عنهما قال‏:‏ سقيت النبي صلى الله عليه وسلم من زمزم، فشرب وهو قائم ‏.‏((متفق عليه))

Anas (May Allah be pleased with him) reported

The Prophet (ﷺ) forbade us from drinking while standing. Qatadah reported: "We asked him: 'What about eating?"' He said: "That is even worse, (or may be he said) more detestable."Another narration is: The Messenger of Allah (ﷺ) reprimanded [us] for drinking while standing.[Muslim].