Faṭimah: If a woman cannot perform ghusl at the beginning of the prayer time due to harm and prays with tayammum, but later her excuse is removed, does she need to repeat the prayer?

Mother: If she was certain at the beginning of the prayer time that her excuse would last until the end of the time, her prayer is valid, and she does not need to repeat it, even if her excuse is removed before the end of the prayer time. However, she must perform ghusl for the next prayer.