Al-Hajj 22:47
وَيَسْتَعْجِلُونَكَ بِٱلْعَذَابِ وَلَن يُخْلِفَ ٱللَّهُ وَعْدَهُۥ ۚ وَإِنَّ يَوْمًا عِندَ رَبِّكَ كَأَلْفِ سَنَةٍ مِّمَّا تَعُدُّونَ
WayastaAAjiloonaka bilAAathabiwalan yukhlifa Allahu waAAdahu wa-inna yawman AAindarabbika kaalfi sanatin mimma taAAuddoon
And they urge you to hasten the punishment. But Allāh will never fail in His promise. And indeed, a day with your Lord is like a thousand years of those which you count.
They ask you to bring the punishment sooner, while Allah will never go back on His promise. In fact, one day with your Lord is like one thousand years according to your calculation.