Maliks Muwatta Book 25, Hadith Number 13.
Section : Prohibition Against Eating Animals with Fangs.
Yahya related to me from Malik from Ibn Shibab from Abu Idris al-Khawlani from Abu Tha~laba al-Khushani that the Messenger of Allah, may Allah bless him and grant him peace, said, “It is haram to eat animals with fangs.”