What is the ruling on a woman passing in front of a person praying, whether he has a sutrah or not?

Question:
May Allah reward you with good and do you good. Our sister asks: If a woman passes in front of a person praying, whether the person praying is a man or a woman, does it invalidate his prayer? It is known that this happens frequently in many mosques? Yes. She asks: If a woman passes in front of a person praying, whether the person praying is a man or a woman, does it invalidate his prayer? It is known that this happens frequently in many mosques?

Answer:
If the person praying has a sutrah in front of him, and she passes behind the sutrah, then it does not affect his prayer. If he does not have a sutrah, and she passes more than four arm-lengths away from him, then it also does not affect his prayer.
As for if she passes between him and his sutrah, or passes close to him, less than three arm-lengths, if this is out of necessity, such as in crowded mosques like the Sacred Mosque and the Prophet’s Mosque, if this is out of necessity, it does not affect it either.
As for if it is not out of necessity, but rather due to negligence, then if he is praying alone or as an imam, the apparent view from the hadith is that it invalidates his prayer by doing so. But if he is a ma'mum (one praying behind the imam), the imam’s sutrah is a sutrah for the ma'mum. And Allah the Exalted knows best. May Allah reward you with good, and do you good.