Does a grandchild whose father died first inherit from the grandfather?

In faraid, a grandchild through a son who died first is excluded (terhijab) if the grandfather still has another living son. This is often felt to be unfair. The solution: the grandfather can make a bequest for that grandchild of up to 1/3 of the estate, since they are not heirs at that time. Some Muslim countries and Malaysian states (for example through the Selangor Muslim wills Enactment) provide for an obligatory bequest (wasiat wajibah) for orphaned grandchildren even if the grandfather made no bequest. Its application differs by state, so refer to your state Enactment. Uncles and aunts are also encouraged to help their orphaned nieces and nephews.