The Prophet ﷺ said, "The disbeliever eats in seven intestines, while the believer eats in one."
حدثنا علي بن محمد حدثنا عبد الله بن نمير عن عبيد الله عن نافع
عن النبي ﷺ قال الكافر يأكل في سبعة أمعاء والمؤمن يأكل في معى واحد
Muslim narrated it in the Book of Drinks, in the chapter "The believer eats with one intestine while the disbeliever eats with seven intestines," hadith no. 2060, from the hadith of Ubaydullah bin Umar, through him.