Hadith #3494 (Sunan Ibn Majah)
Book: Etiquette
Narrator(s): Abdul Wahab bin 'Abdul Majeed al-Thaqaf عبد الوهاب بن عبد المجيد الثقفي, Abu al-Darda, Ibrahim bin Sa'id al-Juhari إبراهيم بن سعيد الجوهري, Muhammad bin Abi 'Adi محمد بن أبي عدي, Rashid bin Njyh al-Hmany راشد بن نجيح الحماني, Shar bin Hushab al-Asha'ri شهر بن حوشب الأشعري, Umm al-Darda'a أم الدرداء

“If a man were to fill his stomach completely with pus until it destroyed him, that would be better for him than filling (his mind) with poetry.”

Source: https://parallelquran.com/hadith/sunan-ibn-majah-3494/