(11) باب مَا جَاءَ فِي النَّهْىِ عَنِ الشُّرْبِ، قَائِمًا
Narrated Qatadah:
From Anas: "The Prophet (ﷺ) prohibited that a man should drink while standing." (Qatadah said:) So it was said: "And eating ?" He (Anas) said: "That is worse."[Abu 'Eisa said:] This Hadith is Hasan Sahih.
Reference: Jami` at-Tirmidhi 1879
In-book reference: Book 26, Hadith 19
English translation: Vol. 3, Book 24, Hadith 1879