وَعَن ابْن عَبَّاس
قَالَ: أَتَيْتُ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بِدَلْوٍ مِنْ مَاءِ زَمْزَمَ فَشَرِبَ وَهُوَ قَائِمٌ
Ibn Abbas told that when he brought the Prophet (sallallahu alayhi wa sallam) a bucket of Zamzam water he drank it while standing.
Mishkat al-Masabih 4096, Book 22, Foods, Hadith 104. 1 min read