Assets given to women must not be taken back after divorce
Our Almighty Lord has revealed in verses that in the event of divorce the man must not take back anything he gave his wife while they were married:
If you desire to exchange one wife for another and have given your original wife a large amount, do not take any of it. Would you take it by means of slander and outright crime? How could you take it when you have been intimate with one another and they have made a binding contract with you?” (Qur'an, 4:20-21)
... It is not lawful for you to keep anything you have given them... (Qur'an, 2:229)
God reminds men in these verses that by marrying women they have promised to take care of them; He reveals that because of that promise they have no right to demand anything back, even if they have given women “a large amount.” A Muslim who abides by the Qur’an will know that this is a promise made to God, and will therefore discharge his responsibility in the finest way. In the verse “It is not lawful for you to keep anything you have given them,” God clearly prohibits any other course of behavior.