In the Quran

وَلَوۡ يُؤَاخِذُ ٱللَّهُ ٱلنَّاسَ بِظُلۡمِهِم مَّا تَرَكَ عَلَيۡهَا مِن دَآبَّةٖ وَلَٰكِن يُؤَخِّرُهُمۡ إِلَىٰٓ أَجَلٖ مُّسَمّٗىۖ فَإِذَا جَآءَ أَجَلُهُمۡ لَا يَسۡتَـٔۡخِرُونَ سَاعَةٗ وَلَا يَسۡتَقۡدِمُونَ

"And if Allah were to impose blame on the people for their wrongdoing, He would not have left upon the earth any creature, but He defers them for a specified term. And when their term has come, they will not remain behind an hour, nor will they precede [it]"