Sahih Muslim , Book 36, Hadith 149 (In-Book) ⓘ
Anas reported that Allah's Apostle forbade that a person should drink while standing. Qatada reported: We said to him: What about eating? Thereupon he (Anas) said: That is even worse and more detestable (abominable).
حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا عَبْدُ الأَعْلَى، حَدَّثَنَا سَعِيدٌ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم أَنَّهُ نَهَى أَنْ يَشْرَبَ الرَّجُلُ قَائِمًا . قَالَ قَتَادَةُ فَقُلْنَا فَالأَكْلُ فَقَالَ ذَاكَ أَشَرُّ أَوْ أَخْبَثُ .
also referenced under: Hadith 2024 (Reference) & Book 23, Hadith 5018 (USC-MSA)