the Prophet forbade the price of cats and dogs, except hunting. (Da if) Abu Abdur-Rahman (An-Nasa I) said: The Hadith of Hajjaj from Hammad bin Salamah is not authentic:  

أَنَّ رَسُولَ اللَّهِ ﷺ نَهَى عَنْ ثَمَنِ السِّنَّوْرِ وَالْكَلْبِ إِلاَّ كَلْبَ صَيْدٍ قَالَ أَبُو عَبْدِ الرَّحْمَنِ وَحَدِيثُ حَجَّاجٍ عَنْ حَمَّادِ بْنِ سَلَمَةَ لَيْسَ هُوَ بِصَحِيحٍ  

a man came to the Prophet and said: "O Messenger of Allah, I have trained dogs; advise me concerning them." He said: "Whatever your dogs catch for you, eat," I side: "Even if they kill it?" He said: "Even if they kill it. " He said: "Advise me about my bow. "He said: "Whatever your arrow returns to you, eat." He said: "Even if it gets away from you, so long as you do not find the mark of an arrow other than yours on it, or you find that it has gone rotten."(Another chain).  

أَنَّ رَجُلاً أَتَى النَّبِيَّ ﷺ فَقَالَ يَا رَسُولَ اللَّهِ إِنَّ لِي كِلاَبًا مُكَلَّبَةً فَأَفْتِنِي فِيهَا قَالَ مَا أَمْسَكَ عَلَيْكَ كِلاَبُكَ فَكُلْ قُلْتُ وَإِنْ قَتَلْنَ قَالَ وَإِنْ قَتَلْنَ قَالَ أَفْتِنِي فِي قَوْسِي قَالَ مَا رَدَّ عَلَيْكَ سَهْمُكَ فَكُلْ قَالَ وَإِنْ تَغَيَّبَ عَلَىَّ قَالَ وَإِنْ تَغَيَّبَ عَلَيْكَ مَا لَمْ تَجِدْ فِيهِ أَثَرَ سَهْمٍ غَيْرَ سَهْمِكَ أَوْ تَجِدْهُ قَدْ صَلَّ يَعْنِي قَدْ أَنْتَنَ قَالَ ابْنُ سَوَاءٍ وَسَمِعْتُهُ مِنْ أَبِي مَالِكٍ عُبَيْدِ اللَّهِ بْنِ الأَخْنَسِ عَنْ عَمْرِو بْنِ شُعَيْبٍ عَنْ أَبِيهِ عَنْ جَدِّهِ عَنِ النَّبِيِّ ﷺ