(20) Game and Animals Which May Be Slaughtered
كتاب الصيد والذبائح
(3a) Chapter: Lawful and Unlawful Food - Section 1
(2) باب ما يحل اكله وما يحرم - الفصل الأول
Mishkat al-Masabih 4108 
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.)
وَعَن أبي قتادةَ أَنَّهُ رَأَى حِمَارًا وَحْشِيًّا فَعَقَرَهُ فَقَالَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «هَلْ مَعَكُمْ مِنْ لَحْمِهِ شَيْءٌ؟» قَالَ: مَعَنَا رِجْلُهُ فَأَخَذَهَا فَأَكَلَهَا
 مُتَّفق عَلَيْهِ  (الألباني)حكم :
Reference : Mishkat al-Masabih 4108
In-book reference : Book 20, Hadith 44