وَعَنْ أَنَسٍ عَنِ
النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَنَّهُ نَهَى أَنْ يَشْرَبَ الرَّجُلُ قَائِمًا
Anas said the Prophet (sallallahu alayhi wa sallam) forbade that a man should drink standing.
Mishkat al-Masabih 4094, Book 22, Foods, Hadith 102. 1 min read