Narrated by:Ibn 'Umar that
It was narrated from Ibn 'Umar that:The Messenger of Allah commanded that all dogs be killed except dogs used for hunting or herding livestock.
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا حَمَّادٌ، عَنْ عَمْرٍو، عَنِ ابْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم أَمَرَ بِقَتْلِ الْكِلاَبِ إِلاَّ كَلْبَ صَيْدٍ أَوْ كَلْبَ مَاشِيَةٍ .
Nesai
The Book of Hunting and Slaughtering • Hadith 4279