Sa'id bin Abi Sa'id · Wages (Kitab Al-Ijarah)

A man told the Messenger of Allah (ﷺ) that he was being deceived in business transactions. The Messenger of Allah (ﷺ) then said: When you make a bargain, say: There is no attempt to deceive. So when the man made a bargain, he said: There is no attempt to deceive.

That the Prophet (ﷺ) used to accept a gift and make return for it.

Al-Bara' had a she-camel which was accustomed to graze the standing crop belonging to the people. She entered a garden and did damage to it. The Messenger of Allah (ﷺ) was informed about it. So he gave decision that the owners of gardens are responsible for guarding them by day, and the owners of the animals are responsible for guarding them by night. Any damage done by animals during the night is a responsibility lying on their owners.