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

Ibn 'Umar (May Allah be pleased with them) reported

During the lifetime of the Messenger of Allah (ﷺ) we would eat while walking and would drink while standing.[At- Tirmidhi].