Nafi' bin al-Azraq asked Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both): What is your view: when I send my trained dog after game and it then kills the game, may I eat that game? Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said: Eat it. Nafi' said: Allah says: "Except what you have slaughtered" [Surah al-Ma'idah: 3], that is, eat only when you have slaughtered it; yet you say that even if the game is killed, eat it. Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said: O Ibn al-Azraq, what is your view: if I catch it and slaughter it, there is no harm. By Allah, I know concerning which dogs this verse was revealed. It was revealed concerning the dogs of Banu Nabhan, who are of the tribe of Tayyi'. O Ibn al-Azraq, woe to you! There will surely be news for you.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيد والذبائح / 18871