Is it permissible for a man to postpone or refuse procreation on the grounds that his wife is unfit to raise children, despite his attempts to reform her?

Seeking to have children is a legitimate right for the wife. Jurists have stipulated the prohibition of a husband practicing 'azl (coitus interruptus) with his free wife without her permission, because she has a right to have children. The husband's claim that his wife is not good at raising children does not justify preventing her from her legitimate right to procreate. Rather, he must qualify her for it and be patient with her, because raising children is a shared responsibility between the spouses. However, if the spouses agree on birth control for a specific benefit, then that is permissible.