Hazrat Abu Hurairah (may Allah be pleased with him) narrated that there was a man who used to eat excessively. Then he embraced Islam and began to eat less. This was mentioned to the Messenger of Allah (peace and blessings be upon him), so he said: "A believer eats in one intestine, and a disbeliever eats in seven intestines."
Hadith Referenceاللؤلؤ والمرجان / كتاب الأشربة / 1335
Hadith Gradingمحدثین:«صحیح»
Hadith Takhrij«صحیح، أخرجه البخاري في: 70 كتاب الأطعمة: 12 باب المؤمن يأكل في معى واحد»