Anyone amongst the Muslims, three of whose children die, and he resigns himself calmly to the will of God, Fire will not touch him but for the fulfilment of the oath. (Using translation from Muslim 2632a)
عَنِ النَّبِيِّ ﷺ قَالَ مَا مِنْ مُسْلِمٍ يَمُوتُ لَهُ ثَلَاثَةٌ مِنَ الْوَلَدِ لَمْ يَبْلُغُوا الْحِنْثَ فَتَمَسُّهُ النَّارُ إِلَّا تَحِلَّةَ الْقَسَمِ