It was narrated that Umm ‘Atiyyah said:
“The Messenger of Allah ﷺ commanded us to bring them (the women) out on the day of Fitr and the day of Nahr.” Umm ‘Atiyyah said: “We said: ‘What if one of them does not have an outer covering?’ He said: ‘Let her sister share her own outer covering with her.’”

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا أَبُو أُسَامَةَ، عَنْ هِشَامِ بْنِ حَسَّانٍ، عَنْ حَفْصَةَ بِنْتِ سِيرِينَ، عَنْ أُمِّ عَطِيَّةَ، قَالَتْ أَمَرَنَا رَسُولُ اللَّهِ ـ ﷺ ـ أَنْ نُخْرِجَهُنَّ فِي يَوْمِ الْفِطْرِ وَالنَّحْرِ . قَالَ قَالَتْ أُمُّ عَطِيَّةَ فَقُلْنَا أَرَأَيْتَ إِحْدَاهُنَّ لاَ يَكُونُ لَهَا جِلْبَابٌ قَالَ " فَلْتُلْبِسْهَا أُخْتُهَا مِنْ جِلْبَابِهَا " .