May Allah have mercy on the early immigrant women. When the verse "That they should draw their veils over their bosoms" was revealed, they tore their thick outer garments and made veils from them.  

أَنَّهَا قَالَتْ يَرْحَمُ اللَّهُ نِسَاءَ الْمُهَاجِرَاتِ الأُوَلَ لَمَّا أَنْزَلَ اللَّهُ { وَلْيَضْرِبْنَ بِخُمُرِهِنَّ عَلَى جُيُوبِهِنَّ } شَقَقْنَ أَكْنَفَ قَالَ ابْنُ صَالِحٍ أَكْثَفَ مُرُوطِهِنَّ فَاخْتَمَرْنَ بِهَا  

I saw (this tradition) in the writing of my maternal uncle from 'Aqil, from Ibn Shihab through a different chain of narrators and to the same effect.  

عَنِ ابْنِ شِهَابٍ بِإِسْنَادِهِ وَمَعْنَاهُ