Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates from the Prophet (peace and blessings be upon him): "He (peace and blessings be upon him) forbade the meat and milk of the jallalah (the animal that feeds on filth)." Ata bin Abi Rabah (may Allah have mercy on him) also forbade eating the meat of any camel or sheep that is a jallalah.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19478