The command to kill dogs, and its abrogation. The prohibition of keeping dogs, except for hunting, farming, (herding) livestock and the like Sahih Muslim 1574 g

Arabic hadith text
حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، وَابْنُ، بَشَّارٍ - وَاللَّفْظُ لاِبْنِ الْمُثَنَّى - قَالاَ حَدَّثَنَا مُحَمَّدُ، بْنُ جَعْفَرٍ حَدَّثَنَا شُعْبَةُ، عَنْ قَتَادَةَ، عَنْ أَبِي الْحَكَمِ، قَالَ سَمِعْتُ ابْنَ عُمَرَ، يُحَدِّثُ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏"‏مَنِ اتَّخَذَ كَلْبًا إِلاَّ كَلْبَ زَرْعٍ أَوْ غَنَمٍ أَوْ صَيْدٍ يَنْقُصُ مِنْ أَجْرِهِ كُلَّ يَوْمٍ قِيرَاطٌ ‏"
Translation
Ibn Umar (Allah be pleased with them) narrated Allah's Messenger (ﷺ) as saying

He who kept a dog ther than one meant for watching the fields or herds or hunting would lose one qirat every day out of his reward (with God).