النّور — An-Nur Ayat 28
فَاِنْ لَّمْ تَجِدُوْا فِيْهَآ اَحَدًا فَلَا تَدْخُلُوْهَا حَتّٰى يُؤْذَنَ لَكُمْ وَاِنْ قِيْلَ لَكُمُ ارْجِعُوْا فَارْجِعُوْا هُوَ اَزْكٰى لَكُمْ ۗوَاللّٰهُ بِمَا تَعْمَلُوْنَ عَلِيْمٌ
Fa illam tajidū fīhā aḥadan falā tadkhulūhā ḥattā yu'żana lakum wa in qīla lakumurji‘ū farji‘ū huwa azkā lakum, wallāhu bimā ta‘malūna ‘alīm(un).
"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."