What is the ruling if someone peeks into your house?

Question : And repelling him.

Answer : It falls under the category of discretionary punishment (ta'zir). If it is a matter of discretionary punishment, one does not need to repel it with the easiest means. For example, if someone peeks into your house, you need only say, "So-and-so, fear Allah, do not peek into my house." You are permitted to go to a spear or a lance, take it, and gouge out his eye. Yes, without warning, because the Messenger (peace and blessings be upon him) informed that this is permissible and that there is no sin on you. This is not a matter of repelling an aggressor, but rather a matter of punishing the transgressor.
So there is a difference between repelling an aggressor. If it were a matter of repelling an aggressor, we would say to him, "So-and-so, do not look, fear Allah," and he would leave. But in this case, we immediately take the object. Also, we do not come with force so that he hears the sound and leaves; we come quietly and from the side of the door so that he does not face us, see us, and run away. And it is like if someone peeks at you from the roof; you peek at him from the roof, or from his window, or something similar.