Studeing the Effect of Collusion Conditions on Contracts in Imamiyeh Jurisprudentce

There are different opinions about the extent of influence of collusion-conditions on the contracts among the Shiah jurisprudents. The majority of ancient jurisprudents believed that the collusion- conditions , ie conditions accepted by both parties before forming the contracts, have no effect on the contract. This opinion baseed upon 1 –genuine islamic traditions and 2 – the lexical meaning of condition. This article by comparative examining tries to show that this opinion is not acceptable and the narrated traditions are about temporary marriage and the lexical meaning of conditions is rejected . Therefore , as the later famous jurisprudents have stated , according to general conception of sacred tradition that says : “ All moslims are abliged to their obligations. “ and other reasons , it is concluded that the collusion- conditions are as valid as expressed conditions.