﴿وَأَنْذِرْهُمْ يَوْمَ الْحَسْرَةِ إِذْ قُضِيَ الْأَمْرُ وَهُمْ فِي غَفْلَةٍ وَهُمْ لَا يُؤْمِنُونَ﴾
(39) And warn them, [O Muḥammad], of the Day of Regret, when the matter will be concluded;[814] and [yet], they are in [a state of] heedlessness, and they do not believe.