فَهَلۡ يَنظُرُونَ إِلَّا ٱلسَّاعَةَ أَن تَأۡتِيَهُم بَغۡتَةٗۖ فَقَدۡ جَآءَ أَشۡرَاطُهَاۚ فَأَنَّىٰ لَهُمۡ إِذَا جَآءَتۡهُمۡ ذِكۡرَىٰهُمۡ

Fahal yanzuroona illas Saa'ata an ta'tiyahum baghtatan faqad jaaa'a ashraatuhaa; fa annaa lahum izaa jaaa'at hum zikraahum

Do they then only wait for the Hour,- that it should come on them of a sudden? But already have come some tokens thereof, and when it (actually) is on them, how can they benefit then by their admonition?

— Muhammad (مُحَمَّد), 47:18