Maryam 19:39
وَأَنذِرْهُمْ يَوْمَ ٱلْحَسْرَةِ إِذْ قُضِىَ ٱلْأَمْرُ وَهُمْ فِى غَفْلَةٍ وَهُمْ لَا يُؤْمِنُونَ
Waanthirhum yawma alhasrati ithqudiya al-amru wahum fee ghaflatin wahum layu/minoon
And warn them, [O Muḥammad], of the Day of Regret, when the matter will be concluded; and [yet], they are in [a state of] heedlessness, and they do not believe.
Warn them of The Day of Remorse when the whole thing will be settled, while they are heedless and do not believe.