73:17
فَكَيْفَ تَتَّقُونَ إِن كَفَرْتُمْ يَوْمًا يَجْعَلُ ٱلْوِلْدَٰنَ شِيبًا
fakayfa tattaqūna in kafartum yawman yajʿalu l-wil'dāna shīban
So if you disbelieve, how can you guard yourselves against a Day that will turn children’s hair grey,
Then how can you avoid the punishment, if you disbelieve, on a Day (i.e. the Day of Resurrection) that will make the children grey-headed?