فَهَلۡ يَنۡظُرُوۡنَ اِلَّا السَّاعَةَ اَنۡ تَاۡتِيَهُمۡ بَغۡتَةًۚ فَقَدۡ جَآءَ اَشۡرَاطُهَاۚ فَاَنّٰي لَهُمۡ اِذَا جَآءَتۡهُمۡ ذِكۡرٰىهُمۡ‏

Then do they await except that the Hour should come upon them unexpectedly? But already there have come [some of] its indications. Then what good to them, when it has come, will be their remembrance