فَاِنْ لَّمْ تَجِدُوْا فِيْهَآ اَحَدًا فَلَا تَدْخُلُوْهَا حَتّٰى يُؤْذَنَ لَكُمْ وَاِنْ قِيْلَ لَكُمُ ارْجِعُوْا فَارْجِعُوْا هُوَ اَزْكٰى لَكُمْ ۗوَاللّٰهُ بِمَا تَعْمَلُوْنَ عَلِيْمٌ ( النور: ٢٨ )
Fa il lam tajidoo feehaaa ahadan falaa tadkhuloohaa hattaa yu'zana lakum wa in qeela lakumurji'oo farji'oo huwa azkaa lakum; wallaahu bimaa ta'maloona 'Aleem (an-Nūr 24:28)
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. (An-Nur [24] : 28)
1 Mufti Taqi Usmani
Even if you do not find anyone in them, do not enter therein until permission is given to you. And if it is said to you, ‘Go back’, just go back; it is more decent for you. Allah is All-Aware of what you do.