Is it obligatory to divide the compensation for a death accident according to the court's ruling, which gave the grandmother and brother a larger share because they were more affected, or to divide it according to Islamic law, knowing that the grandmother does not need the money?

The blood money (Diyah) must be divided according to Islamic inheritance law, and it is not permissible to deviate from this unless the adult heirs agree upon a specific division or some of them waive their right. The blood money for the mother is divided such that her mother receives one-sixth, and the remainder is divided among the children, with the male receiving the share of two females. Any heir may waive their right after that. It is advisable to consult scholars regarding complex matters to ensure all heirs are accounted for.