(10) بَاب الْأَمْرِ بِقَتْلِ الْكِلَابِ وَبَيَانِ نَسْخِهِ وَبَيَانِ تَحْرِيمِ اقْتِنَائِهَا إِلَّا لِصَيْدٍ أَوْ زَرْعٍ أَوْ مَاشِيَةٍ وَنَحْوِ ذَلِكَ
Abu Huraira (Allah be pleased with him) reported Allah's Messenger (ﷺ) as saying:
He who kept a dog, but not meant for hunting or watching the herd, would lose one qirat of reward every day.
Reference: Sahih Muslim 1575 f
In-book reference: Book 22, Hadith 74
USC-MSA web (English) reference(deprecated numbering scheme): Book 10, Hadith 3827