Abu Hurairah reported,

A guest came to the Messenger of Allah ﷺ while he was still a disbeliever. The Messenger of Allah ﷺ ordered that a sheep be milked for him, and he drank its milk. Then another was milked, and he drank it. Then another, and he drank that too, until he had drunk the milk of seven sheep.The next morning, he embraced Islam. The Messenger of Allah ﷺ ordered a sheep to be milked for him, and 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 in one intestine, while a disbeliever drinks in seven intestines."

Muslim 5379

Sahih

و حدثني محمد بن رافع حدثنا إسحق بن عيسى أخبرنا مالك عن سهيل بن أبي صالح عن أبيه

عن أبي هريرة

أن رسول الله ﷺ ضافه ضيف وهو كافر فأمر له رسول الله ﷺ بشاة فحلبت فشرب حلابها ثم أخرى فشربه ثم أخرى فشربه حتى شرب حلاب سبع شياه ثم إنه أصبح فأسلم فأمر له رسول الله ﷺ بشاة فشرب حلابها ثم أمر بأخرى فلم يستتمها فقال رسول الله ﷺ المؤمن يشرب في معى واحد والكافر يشرب في سبعة أمعاء

مسلم 5379صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Drinks
Chapter
Believer eats with one intestine and the disbeliever eats with seven intestines
Numbering
Darussalam 5379
Muslim 5379