مسند أحمد

It was narrated that Qatadah said: I heard Jurayy bin Kulaib say: I heard ‘Ali (رضي الله عنه) say: The Messenger of Allah (ﷺ) forbade (sacrificing) an animal that had lost most of its horn or ear. Qatadah said: I asked Sa`eed bin Al-Musayyab: What does lost most of its ear mean? He said: If it has lost half or more of it.