A disbelieving guest came to stay with the Messenger of Allah ﷺ, so the Messenger of Allah ﷺ ordered that a sheep be milked for him. He drank its milk, then another was milked and he drank it, then another and he drank it, until he had drunk the milk of seven sheep.The next morning he embraced Islam, and the Messenger of Allah ﷺ ordered that a sheep be milked for him. He drank its milk, then another was ordered for him but he could not finish it.The Messenger of Allah ﷺ said, "A believer drinks with one intestine, and a disbeliever drinks with seven intestines."
حدثنا إسحق بن موسى الأنصاري حدثنا معن حدثنا مالك عن سهيل بن أبي صالح عن أبيه
أن رسول الله ﷺ ضافه ضيف كافر فأمر له رسول الله ﷺ بشاة فحلبت فشرب ثم أخرى فشربه ثم أخرى فشربه حتى شرب حلاب سبع شياه ثم أصبح من الغد فأسلم فأمر له رسول الله ﷺ بشاة فحلبت فشرب حلابها ثم أمر له بأخرى فلم يستتمها فقال رسول الله ﷺ المؤمن يشرب في معي واحد والكافر يشرب في سبعة أمعاء
Muslim also narrated it, in the Book of Drinks, Chapter on the believer eating with one intestine while the disbeliever eats with several intestines, hadith no. 2063, from the hadith of Malik through this same route, and it is found in Muwatta 2/924.