وَأَنذِرهُم يَومَ الحَسرَةِ إِذ قُضِيَ الأَمرُ وَهُم في غَفلَةٍ وَهُم لا يُؤمِنونَ

Warn them of the Day of Regret, when the matter will be finalized, while they remain oblivious and they don’t believe.