The ruling on one who is afflicted with ritual impurity during prayer

Question:
Honorable Shaykh, if a person is afflicted with ritual impurity on the back of his heart, what should he do? Does he continue his prayer, or does he make it up?

Answer:
They say that if he is afflicted with ritual impurity, if he is able to remove it, he should remove it and continue his prayer, and it does not become invalid. Let us suppose that it affected his turban and his shirt, and he is able to take them off; he takes off the turban but does not take off the shirt, and he prays, continuing in his prayer. Or if it affected his sandals or his socks, and he is able to take them off, he continues in his prayer. This is because the Prophet (peace and blessings be upon him), when he knew that this would happen, if Allah wills, when he knew that there was ritual impurity on his leather socks, he took them off, or if it was on his sandals, he took them off, and he continued in the prayer. So if he is able to remove it, he removes it and continues. But if he is not able to remove it, he exits the prayer to remove the impurity, or he restarts the prayer from the beginning.