legitimacy of necessitating of having child in imamieh jurisprudence

having child in family system is a serious challenge in the current era. there are different views about it among jurists: 1) having child is not as a religious identity and inherent appropriateness of marriage contract. 2) having child is a part of absolute appropriateness of marriage contract but this right is only dedicated to woman. 3) having child is not as a religious identity and part of absolute appropriateness of marriage contract. the only way of lawful back up for compliant about intentional preventing from pairs is that having child within marriage contract or agreement of contract based on it change to a binding guaranty. this paper attempt to study analytically, the presented reasons for each point, to prove the correct one.