´It was narrated from Abu Hurairah that the Messenger of Allah said:` "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."
Hadith ReferenceSunan an-Nasa'i / The Book of Hunting and Slaughtering / Hadith: 4295
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح مسلم