The deferred Mahr deserved for a woman

A: Zakah becomes due on the Mahr of a woman if it remains in her possession after a Hawl has passed on it since the marriage contract, where one-quarter of one-tenth should be given in Zakah. On the other hand, if the mentioned sum was paid upon the betrothal, where the marriage contract was not concluded between them, the Zakah on this money becomes due from the man who paid it, since the sum is still in his possession as it has not yet been transferred into the woman's possession.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.