The ruling on praying in a garment that has been soiled by a child’s vomit

Question:
Honorable Shaykh, is it permissible to pray in a garment that has a child’s vomit on it?

Answer:
It is not permissible to pray in a garment that has been soiled by vomit, whether from a child or from anyone else, because it is like something that has come out of the stomach, so it is vomit, and it must be washed. If he prays while wearing a garment that has vomit on it, his prayer is not valid if he did so intentionally. However, if he was unaware of it, or did not know, or it happened to him, and he prayed, his prayer is valid. But if he was intentional, aware, and knew that it was on his garment, and he prayed while knowing that, his prayer is not valid.