[Machine] A man came to the Prophet ﷺ while he was a disbeliever, and he used to eat a lot. Then he embraced Islam and started eating little. The Prophet ﷺ was informed about this, so he said, "Indeed, a disbeliever eats in seven intestines while a Muslim eats in one."  

أَنَّ رَجُلًا أَتَى النَّبِيَّ ﷺ وَهُوَ كَافِرٌ فَكَانَ يَأْكُلُ أَكْلًا كَثِيرًا ثُمَّ إِنَّهُ أَسْلَمَ فَكَانَ يَأْكُلُ أَكْلًا قَلِيلًا فَذُكِرَ ذَلِكَ لِلنَّبِيِّ ﷺ فَقَالَ إِنَّ الْكَافِرَ يَأْكُلُ فِي سَبْعَةِ أَمْعَاءٍ وَإِنَّ الْمُسْلِمَ يَأْكُلُ فِي مِعًى وَاحِدٍ  

A man used to eat much, but when he embraced Islam, he started eating less. That was mentioned to the Prophet ﷺ who then said, "A believer eats in one intestine (is satisfied with a little food) and a Kafir eats in seven intestines (eats much). " (Using translation from Bukhārī 5397)   

جَاءَ كَافِرٌ إِلَى النَّبِيِّ ﷺ فَأَسْلَمَ فَجَعَلَ يَأْكُلُ قَلِيلًا وَكَانَ قَبْلَ ذَلِكَ يَأْكُلُ كَثِيرًا فَذَكَرَ ذَلِكَ لِلنَّبِيِّ ﷺ فَقَالَ «إِنَّ الْكَافِرَ يَأْكُلُ فِي سَبْعَةِ أَمْعَاءٍ وَالْمُؤْمِنُ يَأْكُلُ فِي مَعِيٍّ وَاحِدٍ»