﴿ فَكَيْفَ تَتَّقُونَ إِن كَفَرْتُمْ يَوْمًۭا يَجْعَلُ ٱلْوِلْدَٰنَ شِيبًا ﴾

“How, then, if you refuse to acknowledge the truth, will you protect yourselves on that Day which shall turn the hair of children grey,”

Please check ayah 73:18 for complete tafsir.