What is the ruling regarding the distribution of the inheritance of a man who passed away, leaving behind a sole daughter and grandchildren from a son who died before him, when it is unknown whether the grandfather had appointed the grandchildren (as heirs) or not, given the multiplication of trade and wealth over time, and what is the grandchildren's fear concerning their aunt refusing to give them anything?

The distribution of an inheritance cannot be determined until the heirs are enumerated. Whoever died before the deceased does not inherit. The children of a son inherit from their grandfather if he has no direct son who is older than them. As for "appointment" (تنصيب), if the intention is a will (وصية), then there is no will for an heir. The work of some heirs in developing the inheritance does not prevent others from their right to the inheritance. The worker is entitled to compensation for his work or a fair wage if the heirs authorized him. In case of disagreement, the matter should be referred to the Sharia (definition) court.