women's outer garments prevent harassment by hypocrites

يَـٰٓأَيُّهَا ٱلنَّبِىُّ قُل لِّأَزْوَٰجِكَ وَبَنَاتِكَ وَنِسَآءِ ٱلْمُؤْمِنِينَ يُدْنِينَ عَلَيْهِنَّ مِن جَلَـٰبِيبِهِنَّ ۚ ذَٰلِكَ أَدْنَىٰٓ أَن يُعْرَفْنَ فَلَا يُؤْذَيْنَ ۗ وَكَانَ ٱللَّهُ غَفُورًا رَّحِيمًا

Prophet, tell your wives, your daughters, and women believers to make their outer garments hang low over them so as to be recog-nized and not insulted: God is most forgiving, most merciful.

۞ لَّئِن لَّمْ يَنتَهِ ٱلْمُنَـٰفِقُونَ وَٱلَّذِينَ فِى قُلُوبِهِم مَّرَضٌ وَٱلْمُرْجِفُونَ فِى ٱلْمَدِينَةِ لَنُغْرِيَنَّكَ بِهِمْ ثُمَّ لَا يُجَاوِرُونَكَ فِيهَآ إِلَّا قَلِيلًا

If the hypocrites, the sick at heart, and those who spread lies in the city do not desist, We shall rouse you [Prophet] against them, and then they will only be your neighbours in this city for a short while.