Maryam 19:39

وَأَنذِرْهُمْ يَوْمَ ٱلْحَسْرَةِ إِذْ قُضِىَ ٱلْأَمْرُ وَهُمْ فِى غَفْلَةٍ وَهُمْ لَا يُؤْمِنُونَ

Wa-andhir'hum yawma l-ḥasrati idh quḍiya l-amru wahum fī ghaflatin wahum lā yu'minūna

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.