Sahih Muslim
The Book of Transactions (Kitab Al-Buyu)
Book Number: 010 / Hadith Number: 3754
Tawus reported that he let out his land on rent, whereupon Amr said: I said to him: Abu Abd al-Rahrman, I wish if you abandon this renting of land, for they alleged that Allah's Apostle (may peace be upon him) forbade Mukhabara. He siad: Amr, one who has informed me has the best knowledge of it among them (he meant Ibn Abbas). (He said) that Allah's Apostle (may peace be upon him) did not prohibit it altogether, but said: Lending of land by one among you to his brother is better for him than getting a specified amount of produce from it.