It is narrated from Sayyiduna Abdullah bin al-Zubayr (may Allah be pleased with them both). Abdullah bin Abi Qays al-Nasri (may Allah have mercy on him) said: "I saw Sayyiduna Abdullah bin al-Zubayr (may Allah be pleased with them both) standing on his pulpit in Makkah delivering a sermon, and he was saying: 'Indeed, the believer eats in one intestine and the disbeliever eats in seven intestines; this is how I heard it from your Prophet (peace and blessings be upon him).'"
Hadith Referenceالمعجم الأوسط / باب الميم / 7689
Hadith Gradingمحدثین:إسناده ضعيف لضعف نصر بن محمد
Hadith Takhrij«قال الهيثمي: فيه نصر بن محمد وثقه ابن حبان وضعفه أبو حاتم «مجمع الزوائد ومنبع الفوائد، ج 5، ص 33»» «أخرجه الطحاوي فى «شرح مشكل الآثار» برقم: 2007»