Sahih Muslim
The Book of Transactions (Kitab Al-Buyu)
Book Number: 010 / Hadith Number: 3823
Abu Huraira (Allah be pleased with him) reported Allah's Messenger (may peace be upon him) 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.