Is it permissible in Islamic law for a father to consider the help he provided to his son during his lifetime as the son's share of the inheritance, thereby disinheriting him from his right to property? And is it permissible for the son to complain against his father to the judiciary to demand his right? And is it permissible for a father to favor some of his children over others in gifts and treatment?

The relationship between family members should be based on affection and love. The sister erred by seeking to stir up hatred, yet it is advised to be patient, forgiving, and to strive for reconciliation. The father's status is great, and honoring him is obligatory, even if he mistreats. A father's assistance to his son in marriage or writing over the apartment to his daughters is a gift, not an inheritance. A father's gift to one of his children without a legitimate reason is void, and if the children acquire it, you have the right to resort to the judiciary while maintaining respect for your father.