´It was narrated that Sufyan bin Abu Zuhair said:` “I heard the Prophet (ﷺ) say: ‘Whoever keeps a dog that he does not need for farming or herding, one Qirat will be deducted from his (good) deeds each day.’”
Hadith ReferenceSunan Ibn Majah / Chapters on Hunting / Hadith: 3206
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه