Sayyiduna Adi bin Hatim (may Allah be pleased with him) says that he asked the Messenger of Allah (peace and blessings be upon him) about game caught by a dog, and he (peace and blessings be upon him) said: "Whatever game the dog holds for you without eating from it, eat that game, for its catching it will be regarded as its slaughter. If you find another dog with your dog and fear that it may be the one that caught or killed the game, then do not eat, because you mentioned the name of Allah when sending your own dog, not over the other." The narrator says: I asked about an animal hunted by an arrow striking with its broad side, and he (peace and blessings be upon him) said: "Game that the arrow strikes with its edge, eat; and what you strike with the broad side of the arrow will be regarded as having died from the blow of a piece of wood."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيد والذبائح / 18874