What is the ruling regarding someone who was unaware of the obligation to pray immediately upon the cessation of menstruation, and used to perform her prayers after performing ghusl without making up the prayers from the period between the cessation of menstruation and performing ghusl, knowing that she cannot determine the number of missed prayers?

A woman who has become pure from menstruation or postpartum bleeding, and delayed performing ghusl (ritual bath) and making up missed prayers, must make up the prayers she is certain she missed after her purification. It is recommended to make up what she predominantly believes she missed, as a precautionary measure and to clear her conscience, while she is not obliged to make up what she is not certain about, because the original state is freedom from liability.