عَنْ إِبْرَاهِيمَ عَنِ ابْنِ عَبَّاسٍ رَضِيَ اللَّهُ عَنْهُمَا قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ إِذَا أَرْسَلْتَ الْكَلْبَ فَأَكَلَ مِنَ الصَّيْدِ فَلَا تَأْكُلْ فَإِنَّمَا أَمْسَكَ عَلَى نَفْسِهِ وَإِذَا أَرْسَلْتَهُ فَقَتَلَ وَلَمْ يَأْكُلْ فَكُلْ فَإِنَّمَا أَمْسَكَ عَلَى صَاحِبِهِ
Sayyiduna Ibn Abbas (may Allah be pleased with them) narrates that the Noble Prophet (peace and blessings be upon him) said: When you release your dog for hunting and it eats from the catch, then do not eat that game, because it means the dog has kept it for itself. And when you release your dog and it does not eat from it, then eat it, because it has kept the game for its owner.