Musnad Ahmad 774:1

Hushaym narrated to us, from Abu Bishr, from Sa'id ibn Jubayr, from 'Adi ibn Hatim, who said: I asked the Messenger of Allah, may Allah bless him and grant him peace, and said: "Our land is a land of hunting. One of us shoots at game, and it disappears from him for a night or two, then he finds it with his arrow in it?" He said: "If you find your arrow, and you do not find in it the mark of anything else, and you know that your arrow killed it, then eat it."