Strange and innovated method of performing ghusl after menstruation

This is an innovated method (bid’ah) for which Allah has revealed no authority [i.e., it has no basis in Islam]. In order to follow the Sunnah, it is sufficient for you to do wudu, then make sure that water reaches every part of the head and body. We ask Allah to grant you beneficial knowledge and to keep you safe from ignorance and bid’ah (innovation).