" مَنِ اقْتَنَى كَلْبًا إِلاَّ كَلْبَ صَيْدٍ أَوْ مَاشِيَةٍ نَقَصَ مِنْ أَجْرِهِ كُلَّ يَوْمٍ قِيرَاطَانِ "
It was narrated from Salim, from his father, that the Messenger of Allah said: "Whoever keeps a dog. Except a dog for hunting or herding livestock, two Qirats will be deducted from his reward each day."