Quran 22, Al-Hajj (The Pilgrimage) ⓘ
22:47And they will bid thee hasten on the Doom, and Allah faileth not His promise, but lo! a Day with Allah is as a thousand years of what ye reckon.
وَيَسْتَعْجِلُونَكَ بِالْعَذَابِ وَلَنْ يُخْلِفَ اللَّهُ وَعْدَهُ وَإِنَّ يَوْمًا عِنْدَ رَبِّكَ كَأَلْفِ سَنَةٍ مِمَّا تَعُدُّونَ