فَإِن لَّمۡ تَجِدُواْ فِيهَآ أَحَدًا فَلَا تَدۡخُلُوهَا حَتَّىٰ يُؤۡذَنَ لَكُمۡ ۖ وَإِن قِيلَ لَكُمُ ٱرۡجِعُواْ فَٱرۡجِعُواْ ۖ هُوَ أَزۡكَىٰ لَكُمۡ ۚ وَٱللَّهُ بِمَا تَعۡمَلُونَ عَلِيمٌ
If ye find no one in the house, enter not until permission is given to you: if ye are asked to go back, go back: that makes for greater purity for yourselves: and Allah knows well all that ye do.<br/>
And if you do not find anyone in them, to give you permission, [still] do not enter them until permission has been given to you. And if it is said to you, when you are seeking permission, 'Go away,' then go away, for this, going away, is purer, that is, better, for you, than sitting [and waiting] at the doorstep. And God knows what you do, whether you enter with permission or without it, and He will requite you for it.