The Prophet ﷺ said, "A believer eats with one stomach, while a disbeliever eats with seven."
عن النبي ﷺ قال: المؤمن يأكل في معى واحد، والكافر يأكل في سبعة أمعاء.
Muslim narrated it in the Book of Drinks (2062), from Abu Kurayb Muhammad bin Ala, who said, "Abu Usama narrated to us, who said, 'Burayd narrated to us, from his grandfather, from Abu Musa Ashari,'" and he mentioned it.