Is it permissible for a deceased grandmother to donate her share of her deceased son's inheritance to her male grandchildren and for them to benefit from it before her death? And is it permissible to give the value of haram money from usury in the form of a piece of land instead of cash, given that the deceased's estate consists only of agricultural lands?

Scholars have differed regarding the obligation of justice among grandchildren in giving gifts, and the fatwa adopted by us is that it is not obligatory.

Accordingly, a grandmother's gift of her share of her son's inheritance to her male grandchildren is permissible, and that share is considered exclusive to them once the gift is complete.

As for disposing of ill-gotten wealth, what is Islamically required is to dispose of the amount that the father acquired from usury. Any method of disposal will suffice, as long as the amount given out is not less than the forbidden amount.