39وَأَنذِرهُم يَومَ الحَسرَةِ إِذ قُضِيَ الأَمرُ وَهُم في غَفلَةٍ وَهُم لا يُؤمِنونَHilali & KhanAnd warn them (O Muhammad SAW) of the Day of grief and regrets, when the case has been decided, while (now) they are in a state of carelessness, and they believe not.