The jurists, who believe in restraining the necessity of Zakat in nine-fold goods, have demonstrated to traditions, consensus and general of some verses. On the other hand, the followers of "generalization theory" have demonstrated to traditions and intellectual reasons, but their proofs have been refused by the objectors, particularly that this group has been entangled in analogy. In this paper ,in addition to examining the two parties' reasons, the arguments of the generalization theory followers are refused because of not having been matched with mutawatir and specified proofs and not finding any logical solution. But by observing the target of this article that presents a solution and is a new production to solve this problem, paralleled with rejecting the above theory, a middle theory is suggested that appears to be the only way of ending the arguments that seem unsolvable.