Sayyiduna Abu Hurayrah (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Whoever eats the flesh of his brother in this world, (his brother) will be brought near to him on the Day of Resurrection, and it will be said to him: 'Eat him alive, just as you ate him dead.' So he will eat him, grimacing and screaming."
Al-Tabarani recorded it in al-Mu'jam al-Awsat. Its chain contains Ibn Ishaq, who is a mudallis (one who conceals defects in the chain), and a narrator whom I do not know.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدب / 13129
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«اخرجه الطبراني فى المعجم الاوسط (1677) ، أخرجه المعجم الأوسط للطبراني برقم: 1677»