Miqdad bin Ma`dikarib (May Allah be pleased with him) reported: I heard Messenger of Allah (ﷺ) say: “No man fills a container worse than his stomach. A few morsels that keep his back upright are sufficient for him. If he has to, then he should keep one-third for food, one-third for drink and one-third for his breathing.”
Commentary: This Hadith dissuades us from overeating as this causes laziness and affects one’s health.
[Riyad us-Saliheen, Book of Miscellany, Chapter 56, No. 516]