Sayyiduna Abu Tha'labah al-Khushani (may Allah be pleased with him) says that the Messenger of Allah (peace and blessings be upon him) "declared unlawful the meat of donkeys and of every beast of prey that has fangs."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19463