Sahih al-Bukhari 101
Narrated Abu Sa`id Al-Khudri:
Some women requested the Prophet (ﷺ) to fix a day for them as the men were taking all his time. On that 
he promised them one day for religious lessons and commandments. Once during such a lesson the 
Prophet said, "A woman whose three children die will be shielded by them from the Hell fire." On that 
a woman asked, "If only two die?" He replied, "Even two (will shield her from the Hell-fire).
حَدَّثَنَا آدَمُ، قَالَ حَدَّثَنَا شُعْبَةُ، قَالَ حَدَّثَنِي ابْنُ الأَصْبَهَانِيِّ، قَالَ سَمِعْتُ أَبَا صَالِحٍ، ذَكْوَانَ يُحَدِّثُ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ،‏.‏ قَالَتِ النِّسَاءُ لِلنَّبِيِّ صلى الله عليه وسلم غَلَبَنَا عَلَيْكَ الرِّجَالُ، فَاجْعَلْ لَنَا يَوْمًا مِنْ نَفْسِكَ‏.‏ فَوَعَدَهُنَّ يَوْمًا لَقِيَهُنَّ فِيهِ، فَوَعَظَهُنَّ وَأَمَرَهُنَّ، فَكَانَ فِيمَا قَالَ لَهُنَّ ‏"‏ مَا مِنْكُنَّ امْرَأَةٌ تُقَدِّمُ ثَلاَثَةً مِنْ وَلَدِهَا إِلاَّ كَانَ لَهَا حِجَابًا مِنَ النَّارِ ‏"‏‏.‏ فَقَالَتِ امْرَأَةٌ وَاثْنَيْنِ فَقَالَ ‏"‏ وَاثْنَيْنِ ‏"‏‏.‏