Muhammad Ayah 18

فَهَلْ يَنظُرُونَ إِلَّا ٱلسَّاعَةَ أَن تَأْتِيَهُم بَغْتَةً‌ۖ فَقَدْ جَآءَ أَشْرَاطُهَا‌ۚ فَأَنَّىٰ لَهُمْ إِذَا جَآءَتْهُمْ ذِكْرَٮٰهُمْ ١٨ Are they only waiting for the Hour to take them by surprise? Yet ?some of? its signs have already come. Once it actually befalls them, will it not be too late to be mindful?