Jami at-Tirmidhi 1883
Jami at-Tirmidhi · Book 26: The Book on Drinks · What Has Been Related About The Permission For Drinking While Standing
Narrated 'Amr bin Shu'aib:
حَدَّثَنَا قُتَيْبَةُ ، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ ، عَنْ حُسَيْنٍ الْمُعَلِّمِ ، عَنْ عَمْرِو بْنِ شُعَيْبٍ ، عَنْ أَبِيهِ ، عَنْ جَدِّهِ ، قَالَ رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَشْرَبُ قَائِمًا وَقَاعِدًا . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ .
From his father, from his grandfather who said: "I saw the Messenger of Allah (ﷺ) drinking while standing and sitting." [Abu 'Eisa said:] This Hadith is Hasan Sahih.
Grade: Hasan (Darussalam)