A dog sent after its game when another dog follows it

Sayyiduna Adi bin Hatim (may Allah be pleased with him) said: I said: O Messenger of Allah! We are a people who hunt; what is lawful for us and what is forbidden? The Prophet (peace and blessings be upon him) said: "Whatever the hunting animals that you train, teaching them from what Allah has taught you, catch for you, eat of it, provided that you mentioned the name of Allah over it when sending it." I said: Even if it kills it? He said: "Yes, even if it kills it." Then he (peace and blessings be upon him) said: "If other dogs join your dog, you may not use that game until you know that it was your dog that caught it."

Jamil bin Zayd (may Allah have mercy on him) said: I asked Sayyiduna Ibn Umar (may Allah be pleased with them both) about the game of dogs. He said: Are they not collared? I said: Of course! I set out leading them. He said: Do you lead all of them? I said: Some of them I lead, and some of them follow me. Sayyiduna Ibn Umar (may Allah be pleased with them both) said: When you see game, release your dog and mention the name of Allah, then eat whatever it catches. As for the dog that follows you, if it catches the game, have nothing to do with it, unless you find it alive and slaughter it. And if a dog that you did not send mauls it and kills it, that is forbidden.

Usamah bin Zayd (may Allah have mercy on him) said: I asked al-Qasim (may Allah have mercy on him): If a man sends his trained dog after game and it catches the game and kills it, but the man finds some untrained dogs with his dog, what is the ruling? Al-Qasim said: If he knows that his trained dog killed it, he may eat it; and if he is in doubt that some other dog may have joined it in killing it, he should not eat it.

Ibrahim (may Allah have mercy on him) said: If an untrained dog drives the game back onto a trained dog, it has spoiled the game.