Is it permissible to prevent a child ignorant of prayer due to his young age from entering the prayer room if he stands in front of the worshipper and obstructs his prostration, or is it better to allow him to do so that he may learn prayer?

Prayer is not invalidated by a child passing by or standing in front of the worshipper. However, this is disliked, and it is recommended to push the child away if doing so does not involve excessive actions that would invalidate the prayer. Indeed, many consecutive actions, such as numerous steps or blows, invalidate prayer, whereas few actions do not. Therefore, there is no harm in allowing one's son to enter the room for prayer if moving him aside does not require excessive actions; otherwise, preventing him from entering would be better.