Hamza says, ‘My family has always done it this way, so this must be the Shari'ah ruling.’ What is the better response?

Why Fiqh Is Needed and Its Broad Range

• A practice cannot be called a Shari'ah ruling merely because it is a family custom; its Shari'ah status is understood through reliable scholarship.
• Every old custom is a Shari'ah ruling.
• There is no need to learn Shari'ah rulings.