Quran

 33:59

يَا أَيُّهَا النَّبِيُّ قُلْ لِأَزْوَاجِكَ وَبَنَاتِكَ وَنِسَاءِ الْمُؤْمِنِينَ يُدْنِينَ عَلَيْهِنَّ مِنْ جَلَابِيبِهِنَّ ۚ ذَٰلِكَ أَدْنَىٰ أَنْ يُعْرَفْنَ فَلَا يُؤْذَيْنَ ۗ وَكَانَ اللَّهُ غَفُورًا رَحِيمًا ﴿٥٩﴾

59. O Prophet! Tell your wives, and your daughters, and the believers’ women to lengthen their garments. That is more proper, so they will be recognized and not be harassed. Allah is Forgiving and Merciful.