Is it permissible for a grandfather to prevent his son's sons from inheriting?

Question:
May Allah reward you with good. The second question, Honorable Shaykh, and what about the reality of adult sons claiming their right against their father when the grandfather is still alive? What is his obligation toward them? The hadith says, "A son and what he owns belong to his father." May Allah reward you with good.

Answer:
No, the grandfather does not prevent the inheritance of his son's sons. He does not prevent them from this right that Allah the Exalted has made obligatory. He gives them their right if they are adults and also of sound mind. As for if they are minors or foolish and not of sound mind, he preserves it for them until the impediment is removed. Then he hands it over to them. It is not permissible for the grandfather to take anything from their right or to prevent them from it, because this is injustice, because this is injustice; injustice is not permissible. Yes.