Is the prayer of one who stands in front of the imam invalid?

The Shaykh : It does not indicate that the prayer is invalid; rather, it indicates what Allah has prescribed through the tongue of the Messenger of Allah (peace and blessings be upon him), in speech and in action. As for the speech, And in action, it is known that the women were in the last rows, after the men and the boys. So there is no evidence in the Sunnah that the prayer of the one who stands in front of the imam is invalid, but he is sinful. Therefore, if one stands in front without intentionally seeking to oppose, the matter is very easy. But if he knows that he is in front of the imam, and this is not conceivable in the situation you are describing, because the people are unaware, when he stands in front like this and prays between the front wall of the Prophet’s Mosque and this court, it is clear and not hidden from anyone, so he is sinful, and we do not say that his prayer is invalid, unlike others.