Is it permissible for a man to deny one of his sons his inheritance and to dedicate all of it to the other?
It is impermissible for a man to deny one of his sons his inheritance and to dedicate all of it to the other, because inheritance is the right of a child after his father's death due to blood relationship. It is a ruling prescribed by Allah (Glorified and Exalted be He). A father does not have the right to deny any of his children this right; he can only dispose of it within the limits prescribed by Allah (Exalted be He). It is impermissible for a father to deny his son his right to inheritance and give it to the other son. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.