Ruling on renouncing Shari`ah

Q 3: A man told his father that according to Shari`ah (Islamic law), full brothers inherit from one another unlike the paternal half brothers. Full brothers have a greater entitlement due to consanguinity than paternal half brothers as agreed by Ijma` (consensus of scholars). Upon that, the father replied "We do not want a Shari`ah which states a ruling like that." What is the ruling on this statement? What should the son do with his father?

A: Such words turn this person out of the fold of Islam as it involves an open rejection to Islam. It is obligatory to advise this man and explain to him the gravity of this statement that amounts to Riddah (apostasy) - Allah forbid. This man must repent to Allah for his statement.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.