Surah An-Noor, Verse 28
Translation — Sahih International
And if you do not find anyone therein, do not enter them until permission has been given you. And if it is said to you, "Go back," then go back; it is purer for you. And Allah is Knowing of what you do.
Source
Kur'an-ı Kerim, Nûr Suresi 24:28
https://kuran.diyanet.gov.tr/mushaf/kuran-meal-2/24-suresi-28-ayet