The right to receive full Mahr upon consummating the marriage even from the deceased husband's inheritance
(Part No. 19; Page No. 86) A: If the reality is as mentioned,
your brother's wife deserves to receive her entire Mahr once your brother consummated marriage with her. So, it is a debt for her like any other debt that has to be repaid before distributing your brothers' estate. If any dispute arises, it should be referred to the legal court for settlement. If you repay the remaining debts of your brother, you will free him from responsibility and you will be rewarded greatly by Allah. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.