He who kept a dog, but not meant for hunting or watching the herd, would lose one qirat of reward every day.
Sahih Muslim Book 22, Hadith 74
← Previous Hadith This hadith has been reported on the authority of Yahya b. Abu Kathir with the same chain of transmitters.

Sahih Muslim Book 22, Hadith 73 Next Hadith → I heard Messenger of Allah (ﷺ) as saying: He who kept a dog (other than that) which is indispensable for watching the field or the animals would lose one qirat out of his deeds every day. As-Sa'ib b Yazid (one of the narrators) said: Did you hear it from Allah's Messenger (ﷺ)? He said: Yes. by the Lord of this mosque.

Sahih Muslim Book 22, Hadith 75