Musannaf Ibn Abi Shaybah

Hazrat Jameel bin Zaid, may Allah have mercy on him, says that I asked Hazrat Ibn Umar, may Allah be pleased with them both, about hunting with dogs. He replied, "Have they been trained for hunting?" I said, "Yes! And I walk behind them." He asked, "Do all the dogs walk ahead of you?" I said, "No, some also come behind me." Hazrat Ibn Umar, may Allah be pleased with them both, said, "When you see any game and you release your dog upon it and take the name of Allah, then whatever game it catches, eat it. However, if a dog that comes behind you also catches the game, do not include it with them. If you find the game alive, then slaughter it; but if you did not release the dog, rather it hunted and killed it on its own, then it is forbidden."