19:39
وَأَنذِرْهُمْيَوْمَٱلْحَسْرَةِإِذْقُضِىَٱلْأَمْرُوَهُمْفِىغَفْلَةٍوَهُمْلَايُؤْمِنُونَ٣٩
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.(39)