Sahih Muslim Book 10, Hadith Number 3717.

Chapter : Leasing out land.

Jabir b. Abdullah (Allah be pleased with them) reported some of the Companions of Allah’s Messenger (may peace be upon him) had surplus of land. Thereupon Allah’s Messenger (may peace be upon him) said: He, who has surplus land (in his possession) should cultivate it, or he should lend it to his brother for benefit, but if he refuses to accept it, he should retain it.