What is the ruling on the prayer of one who prayed with a garment that was ritually impure, having forgotten this; does he have to repeat the prayer or not?

If a Muslim prays with a garment containing impurity, forgetfully or out of ignorance, their prayer is valid. And if they become aware of the impurity during the prayer and remove the garment, their prayer is also valid, based on the hadith of the Prophet, peace and blessings be upon him, when he removed his soiled sandals and continued his prayer.