عَنْ أَبِي هُرَيْرَةَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «كُلُّ ذِي نَابٍ منَ السِّباعِ فأكلُه حرامٌ» . رَوَاهُ مُسلم

Abu Qatada told that he saw a wild ass and killed it. The Prophet asked whether they had any of its flesh and when he replied that they had a leg he took it and ate it. (Bukhari and Muslim.)