Verse 28

فَإِن لَّمْ تَجِدُوا۟ فِيهَآ أَحَدًا فَلَا تَدْخُلُوهَا حَتَّىٰ يُؤْذَنَ لَكُمْ وَإِن قِيلَ لَكُمُ ٱرْجِعُوا۟ فَٱرْجِعُوا۟ هُوَ أَزْكَىٰ لَكُمْ وَٱللَّهُ بِمَا تَعْمَلُونَ عَلِيمٌ

Then if you do not find anybody in there, you shall not enter therein until you obtain permission; and if you are told to go back, you shall go back, this is purer for you. And God fully knows what you do.