"Whoever keeps a dog that is not a dog used for hunting, herding livestock or guarding land, two qirats will be deducted from his reward each day." (Using translation from Nasāʾī 4290)
عَنْ رَسُولِ اللهِ ﷺ قَالَ «مَنِ اقْتَنَى كَلْبًا لَيْسَ بِكَلْبِ صَيْدٍ وَلَا مَاشِيَةٍ وَلَا أَرْضٍ فَإِنَّهُ يَنْتَقِصُ مِنْ أَجْرِهِ قِيرَاطَيْنِ كُلَّ يَوْمٍ»