That the Prophet ﷺ said: "The disbeliever eats with seven intestines and the believer eats with one intestine."  

عَنِ النَّبِيِّ ﷺ قَالَ الْكَافِرُ يَأْكُلُ فِي سَبْعَةِ أَمْعَاءٍ وَالْمُؤْمِنُ يَأْكُلُ فِي مِعًى وَاحِدٍ  

"The Messenger of Allah ﷺ had a disbeliever as a guest. So the Messenger of Allah ﷺ ordered that a sheep be milked so he could drink. Then another was milked so he could drink, then another, so he drank until he had drank the milk of seven sheep. The he awoke the next morning and accepted Islam. The Messenger of Allah ﷺ ordered that a sheep be milked so he could drink its milk, then he ordered for another but he could not finish it. So the Messenger of Allah ﷺ said: 'The believer drinks with one intestine and the disbeliever drinks with seven.'"  

أَنَّ رَسُولَ اللَّهِ ﷺ ضَافَهُ ضَيْفٌ كَافِرٌ فَأَمَرَ لَهُ رَسُولُ اللَّهِ ﷺ بِشَاةٍ فَحُلِبَتْ فَشَرِبَ ثُمَّ أُخْرَى فَشَرِبَهُ ثُمَّ أُخْرَى فَشَرِبَهُ حَتَّى شَرِبَ حِلاَبَ سَبْعِ شِيَاهٍ ثُمَّ أَصْبَحَ مِنَ الْغَدِ فَأَسْلَمَ فَأَمَرَ لَهُ رَسُولُ اللَّهِ ﷺ بِشَاةٍ فَحُلِبَتْ فَشَرِبَ حِلاَبَهَا ثُمَّ أَمَرَ لَهُ بِأُخْرَى فَلَمْ يَسْتَتِمَّهَا فَقَالَ رَسُولُ اللَّهِ ﷺ الْمُؤْمِنُ يَشْرَبُ فِي مِعًى وَاحِدٍ وَالْكَافِرُ يَشْرَبُ فِي سَبْعَةِ أَمْعَاءٍ