You must not be harsh with them. You must be kind, respectful and obedient with them and be an example.

Sheikh my parents dont pray 5 times salah and they are not serious about islam . whenever i say to them offer the salah they will reply Allah is merciful ,He will forgive us .. please advice me how should i advice my parents ? should i be harsh on them ?

Etiquette, Morals and Heart-Softeners |