Hadith 2156 Part B

setting

Sahl b. Sa'd as-Sa'idi reported that a person peeped through the hole of the door of Allah's Messenger (ﷺ) and he had with him some pointed thing with which he had been adjusting (the hair of his head). Allah's Messenger (ﷺ) said to him

If I were to know that you had been peeping. I would have thrust it in your eyes. Allah has prescribed seeking permission because of protection against glance.