The Messenger of Allah ﷺ said, "If a man peeps into your home without permission and you throw a pebble at him that puts out his eye, you bear no blame for it."
أن رسول الله ﷺ قال: لو أن رجلا اطلع عليك بغير إذن، فخذفته بحصاة، ففقأت عينه ما كان عليك من جناح.