How is the sum of a gas station license, discovered forty years after the division of the grandfather's inheritance, to be divided, given that most of the grandfather's sons and daughters have passed away; is it to be divided like the original inheritance, or among the living relatives, and do the children of the deceased have a share?

If your grandfather's estate or valuable assets appear, they should be divided among his original heirs at the time of his death. If any of these heirs have passed away, their share devolves upon their own heirs. Given the complexity and sensitivity of inheritance matters, it is advisable to refer the issue to the Sharia (definition) courts or consult with knowledgeable scholars to verify all heirs, wills, debts, and other rights before distribution.