﴿ إِنَّ ٱلَّذِينَ كَفَرُوا۟ لَن تُغْنِىَ عَنْهُمْ أَمْوَٰلُهُمْ وَلَآ أَوْلَٰدُهُم مِّنَ ٱللَّهِ شَيْـًۭٔا ۖ وَأُو۟لَٰٓئِكَ أَصْحَٰبُ ٱلنَّارِ ۚ هُمْ فِيهَا خَٰلِدُونَ ﴾

“[But,] behold, as for those who are bent on denying the truth - neither their worldly possessions nor their children will in the least avail them against God: and it is they who are destined for the fire, therein to abide.”

As for the disbelievers their riches shall not avail protect them neither their children against God that is against His chastisement these two are singled out for mention because a person usually avails himself either by paying a ransom or by resorting to the help of his children; those are the inhabitants of the Fire abiding therein.