From Sahih Muslim (Hadith 4031):
Abu Huraira (Allah be pleased with him) reported Allah's Messenger (ﷺ) as saying:He who kept a dog except one meant for watching the herd, or for hunting or for watching the fields. he lost two qirat of reward every day. Zuhri said: The words of Abu Huraira (Allah be pleased with him) were conveyed to Ibn Umar who said: May Allah have mercy upon Abu Huraira; he owned a field
Reference: Muslim 4031