Nafi' (may Allah have mercy on him) says that Sayyiduna Ibn Umar (may Allah be pleased with them both) saw a poor man, he called him near and placed food before him, and he ate a lot of food. Sayyiduna Ibn Umar (may Allah be pleased with them both) saw this and said to me: "Do not let him come to me again. I heard the Prophet (peace and blessings of Allah be upon him) say that a disbeliever eats with seven intestines."
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 5438
Hadith Gradingحکم دارالسلام:إسناده صحيح ، خ : 5393، م :2060.