Is it necessary to repeat the prayers that were performed after an incorrect ghusl following menstruation, knowing that their number is not remembered?

For the validity of ghusl (ritual bath), it is a condition to cover the entire body with water, ensuring that the roots of the hair are checked and water reaches them. Thus, for anyone who does not cover their entire body, the ghusl is not sufficient, and their prayer is invalid, necessitating its repetition according to the majority of scholars. Whoever does not know the exact number of invalid prayers must continue making up for them until they are reasonably certain that their obligation has been fulfilled. However, Sheikh al-Islam Ibn Taymiyyah and a group of scholars are of the opinion that there is no obligation to make up for prayers for someone who unknowingly omitted a condition or pillar. It is obligatory upon every accountable individual to learn the rulings of individual obligations (fard ayn) such as purification and prayer.