388—and all of them are permissible.
389—Any such partnership is invalidated if it involves injustice and uncertainty affecting either partner—for example, if one partner is assigned the profit from a specified period and the other the profit from another period, or if one is assigned the profit from one1 of two commodities, or one1 of two trading journeys, and similar arrangements.
390—The same also invalidates orchard sharecropping and field sharecropping.
Rāfi ibn Khadīj said: “During the time of the Messenger of Allah—may Allah bless him and grant him peace—people would lease land in return for the produce growing along the banks of streams and at the heads of irrigation channels, together with a portion2 of the crop. One part would perish while the other survived, or the other would survive while the first perished. This was the only form of rent people used. (That is why he forbade it) 3. As for a specified, guaranteed payment, there is no harm in it.” Muslim narrated it4.
“The Prophet—may Allah bless him and grant him peace—entered into a sharecropping agreement with the people of Khaybar for half of whatever it yielded in the form of