What did the Prophet Muhammad (saw) say about charging a certain amount of money for selling or renting land for cultivation?
 Narrated `Amr:                     When I mentioned it (i.e. the narration of Rafi` 'bin Khadij: no. 532) to Tawus, he said, "It is permissible to rent the land for cultivation, for Ibn `Abbas said, 'The Prophet did not forbid that, but said: One had better give the land to one's brother gratis rather than charge a certain amount for it.' "