Ibn 'Umar (May Allah be pleased with them) said:
The Messenger of Allah (ﷺ) said, "He who keeps a dog other than one for guarding the fields or herds or hunting, will lose two Qirat every day out of his rewards."[Al-Bukhari and Muslim].
App reference: Book 18, Hadith 178
Arabic/English book reference: Book 18, Hadith 1688