Sunan An-Nasa'i - سنن النسائي
42. The Book of Hunting and Slaughtering - كتاب الصيد والذبائح
13) Chapter: The Concession For Keeping Dogs For Hunting
It was narrated that Ibn 'Umar said:
"The Messenger of Allah said:' whoever keeps a dog except one that is trained for hunting or a dog for herding livestock, two
Qirats will be deducted from his reward each day."
13) باب الرُّخْصَةِ فِي إِمْسَاكِ الْكَلْبِ لِلصَّيْدِ
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا اللَّيْثُ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّهُ سَمِعَهُ يَقُولُ إِنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ . " مَنْ أَمْسَكَ كَلْبًا إِلاَّ كَلْبًا ضَارِيًا أَوْ كَلْبَ مَاشِيَةٍ نَقَصَ مِنْ أَجْرِهِ كُلَّ يَوْمٍ قِيرَاطَانِ "