Why does not a grandchild inherit from his grandfather in case his father dies while the grandfather still alive?
As far as the grandchildren are concerned, there is no direction mentioned in Quran or Hadith. But if you realize, Shariah gives permission for one third of the share to be willed. But this one third should not fall in those categories which Allah has established in Quran. For example I cannot say that I like the elder son more than the younger one. Suppose I have a friend who has helped me a lot. The maximum Im allowed to will is one third of that. Since these grandchildren dont come directly under the inheritance, the grandfather can will for a maximum of one third or less than that. So there is a scope given in the Shariah for that.
