It was Narrated from 'Adiyy bin Hatim the he asked the Messenger of Allah :

"I release my trained dog and he catches (game)." He said: "If you release the trained dog and you say the name of Allah over him, and he catches (something), then eat." I said: "Even if he kills it?" He said: shoot with the Mirad." He said: "If it hits (the game) with its sharp point, then eat, but if it hits it with its broad side, then do not eat"

أَخْبَرَنَا إِسْمَاعِيلُ بْنُ مَسْعُودٍ، قَالَ حَدَّثَنَا أَبُو عَبْدِ الصَّمَدِ عَبْدُ الْعَزِيزِ بْنُ عَبْدِ الصَّمَدِ، قَالَ حَدَّثَنَا مَنْصُورٌ، عَنْ إِبْرَاهِيمَ، عَنْ هَمَّامِ بْنِ الْحَارِثِ، عَنْ عَدِيِّ بْنِ حَاتِمٍ، أَنَّهُ سَأَلَ رَسُولَ اللَّهِ ﷺ فَقَالَ أُرْسِلُ الْكَلْبَ الْمُعَلَّمَ فَيَأْخُذُ . فَقَالَ " إِذَا أَرْسَلْتَ الْكَلْبَ الْمُعَلَّمَ وَذَكَرْتَ اسْمَ اللَّهِ عَلَيْهِ فَأَخَذَ فَكُلْ " . قُلْتُ وَإِنْ قَتَلَ قَالَ " وَإِنْ قَتَلَ " . قُلْتُ أَرْمِي بِالْمِعْرَاضِ . قَالَ " إِذَا أَصَابَ بِحَدِّهِ فَكُلْ وَإِذَا أَصَابَ بِعَرْضِهِ فَلاَ تَأْكُلْ " .