Sura Hūd 11:8

وَلَئِنْ أَخَّرْنَا عَنْهُمُ ٱلْعَذَابَ إِلَىٰٓ أُمَّةٍ مَّعْدُودَةٍ لَّيَقُولُنَّ مَا يَحْبِسُهُۥٓ أَلَا يَوْمَ يَأْتِيهِمْ لَيْسَ مَصْرُوفًا عَنْهُمْ وَحَاقَ بِهِم مَّا كَانُوا۟ بِهِۦ يَسْتَهْزِءُونَ

wa-lain akhkharnā ʿanhumu l-ʿadhāba ila ummatin maʿdūdatin llayaqūlunna mā yaḥbisuhu āla yawma yaʾtīhim laysa maṣrūfan ʿanhum wa-ḥāqa bihim mā kānū bihi yastahziʾūna

If We delay the penalty for them for a definite term, they are sure to say, "What keeps it back?" Ah! On the day it (actually) reaches them, nothing will turn it away from them, and they will be completely encircled by that which they used to mock at!

Sura Hūd 11:104

وَمَا نُؤَخِّرُهُۥٓ إِلَّا لِأَجَلٍ مَّعْدُودٍ

wa-mā nuʾakhkhiruhu illā li-ajalin maʿdūdin

Nor shall We delay it but for a term appointed.