"The believing women used to perform the Subh prayer with the Prophet, then they would go back to their families and no one would recognize them," meaning of the darkness.
كُنَّ نِسَاءُ الْمُؤْمِنَاتِ يُصَلِّينَ مَعَ النَّبِيِّ ﷺ صَلاَةَ الصُّبْحِ ثُمَّ يَرْجِعْنَ إِلَى أَهْلِهِنَّ فَلاَ يَعْرِفُهُنَّ أَحَدٌ تَعْنِي مِنَ الْغَلَسِ
"The women used to pray Subh with the Messenger of Allah ﷺ, wrapped in their wrappers, then they would return, and no one would recognize them because of the darkness." (Using translation from Nasāʾī 546)
أَنَّ نِسَاءً مِنَ الْمُؤْمِنَاتِ كُنَّ يُصَلِّينَ مَعَ رَسُولِ اللهِ ﷺ الصُّبْحَ مُتَلَفِّعَاتٍ بِمُرُوطِهِنَّ ثُمَّ يَرْجِعْنَ إِلَى أَهْلِهِنَّ وَمَا يَعْرِفُهُنَّ أَحَدٌ مِنَ الْغَلَسِ
[Machine] "The Messenger of Allah ﷺ used to pray the Fajr prayer, and then the believing women would exit covered in their veils, and it could not be recognized who they were due to the darkness."
«كَانَ رَسُولُ اللَّهِ ﷺ يُصَلِّي صَلَاةَ الصُّبْحِ ثُمَّ تَخْرُجُ نِسَاءُ الْمُؤْمِنِينَ بِمُرُوطِهِنَّ لَا يُعْرَفْنَ مِنَ الْغَلَسِ»
"The women used to pray Subh with the Messenger of Allah ﷺ, wrapped in their wrappers, then they would return, and no one would recognize them because of the darkness." (Using translation from Nasāʾī 546)
«كُنَّ نِسَاءُ النَّبِيِّ ﷺ يُصَلِّيَنَّ مَعَ رَسُولِ اللهِ ﷺ الصُّبْحَ مُتَلَفِّعَاتٍ بِمُرُوطِهِنَّ فَيَرْجِعْنَ وَمَا يَعْرِفُهُنَّ أَحَدٌ مِنَ الْغَلَسِ»
[Machine] Be women who believe, who pray along with the Messenger of Allah, wearing their designated attire, then return to their families, as no one knows them [as he does].
كُنَّ نِسَاءٌ مِنَ الْمُؤْمِنَاتِ يُصَلِّينَ مَعَ رَسُولِ اللهِ ﷺ صَلَاةَ الصُّبْحِ مُتَلَفِّعَاتٍ بِمُرُوطِهِنَّ ثُمَّ يَرْجِعْنَ إِلَى أَهْلِيهِنَّ وَمَا يَعْرِفُهُنَّ أَحَدٌ