يَسۡـَٔلُونَكَ عَنِ ٱلسَّاعَةِ أَيَّانَ مُرۡسَىٰهَاۖ قُلۡ إِنَّمَا عِلۡمُهَا عِندَ رَبِّيۖ لَا يُجَلِّيهَا لِوَقۡتِهَآ إِلَّا هُوَۚ ثَقُلَتۡ فِي ٱلسَّمَٰوَٰتِ وَٱلۡأَرۡضِۚ لَا تَأۡتِيكُمۡ إِلَّا بَغۡتَةٗۗ يَسۡـَٔلُونَكَ كَأَنَّكَ حَفِيٌّ عَنۡهَاۖ قُلۡ إِنَّمَا عِلۡمُهَا عِندَ ٱللَّهِ وَلَٰكِنَّ أَكۡثَرَ ٱلنَّاسِ لَا يَعۡلَمُونَ

Yas'aloonaka 'anis Saa'ati aiyaana mursaahaa qul innamaa 'ilmuhaa 'inda Rabbee laa yujalleehaa liwaqtihaaa illaa Hoo; saqulat fis samaawaati wal ard; laa ta'teekum illaa baghtah; yas'aloonaka ka annaka hafiyyun 'anhaa qul innamaa 'ilmuhaa 'indal laahi wa laakinna aksaran naasi laa ya'lamoon

They ask thee about the (final) Hour - when will be its appointed time? Say: "The knowledge thereof is with my Lord (alone): None but He can reveal as to when it will occur. Heavy were its burden through the heavens and the earth. Only, all of a sudden will it come to you." They ask thee as if thou Wert eager in search thereof: Say: "The knowledge thereof is with Allah (alone), but most men know not."

— Al-A'raf (ٱلْأَعْرَاف), 7:187