The Book of Transactions (Kitab Al-Buyu`)
Muslim :: Book 10 : Hadith 3720
Sulaiman b. Musa asked Ata': Did Jabir b. 'Abdullah (Allah be pleased with them) reported Allah's Apostle (may peace be upon him) as saying:" He who has land should cultivate it himself, or let his brother cultivate it, and should not give on rent"? He said: Yes.