وَٱلۡقَوَٰعِدُ مِنَ ٱلنِّسَآءِ ٱلَّٰتِي لَا يَرۡجُونَ نِكَاحٗا فَلَيۡسَ عَلَيۡهِنَّ جُنَاحٌ أَن يَضَعۡنَ ثِيَابَهُنَّ غَيۡرَ مُتَبَرِّجَٰتِۭ بِزِينَةٖۖ وَأَن يَسۡتَعۡفِفۡنَ خَيۡرٞ لَّهُنَّۗ وَٱللَّهُ سَمِيعٌ عَلِيمٞ

Walqawaa'idu minan nisaaa'il laatee laa yarjoona nikaahan fa laisa 'alaihinna junaahun ai yada'na siyaabahunna ghaira mutabarrijaatin bi zeenah; wa ai yasta'fif na khairul lahunn; wallaahu Samee'un 'Aleem

Such elderly women as are past the prospect of marriage,- there is no blame on them if they lay aside their (outer) garments, provided they make not a wanton display of their beauty: but it is best for them to be modest: and Allah is One Who sees and knows all things.

— An-Nur (ٱلنُّور), 24:60