Sahih Muslim Book 021, Hadith Number 4743.
Chapter : Hunting with the help of trained dogs.
Abu Tha'laba al-Khushani reported: I came to Allah's Messenger (may peace be upon him) and said: Allah's Messenger, we are in the land of the People of the Book, (so) we eat in their utensils, and (live) in a hunting region. where I hunt with, the help of my bow, and hunt with my trained dog, or with my dog which is not trained. So inform me what is lawful (Halal) for us out of that. He (the Holy Prophet) said: Regarding what you have mentioned of the fact that you live in the land belonging to the People of the Book and so you eat in their utensils, but if you can get utensils other than theirs, then don't eat in them; but if you do not find any, then wash them and eat in them. And regarding what you have mentioned about (your living) in a hunting region, what you hunt, (strike) with the help of your bow, recite the name of Allah (while shooting an arrow) and then eat; and what you catch with the help of your trained dog, recite the name of Allah (while letting oil) the dog and then eat it, and what you get with the help of your untrained dog, (if you find it alive) and slaughter it (according to the law of the Shari'ah), eat it.