Sura Ṭā Hā 20:126

قَالَ كَذَٰلِكَ أَتَتْكَ ءَايَٰتُنَا فَنَسِيتَهَا وَكَذَٰلِكَ ٱلْيَوْمَ تُنسَىٰ

qalā ka-dhālika atatka āyātunā fa-nasītahā wa-ka-dhālika l-yawma tunsa

(Allah) will say: "Thus didst Thou, when Our Signs came unto thee, disregard them: so wilt thou, this day, be disregarded."

Sura al-Sajdah 32:14

فَذُوقُوا۟ بِمَا نَسِيتُمْ لِقَآءَ يَوْمِكُمْ هَٰذَآ إِنَّا نَسِينَٰكُمْ وَذُوقُوا۟ عَذَابَ ٱلْخُلْدِ بِمَا كُنتُمْ تَعْمَلُونَ

fa-dhūqū bi-mā nasītum liqāʾa yawmikum hādhā innā nasīnākum wa-dhūqū ʿadhāba l-khuldi bi-mā kuntum taʿmalūna

"Taste ye then - for ye forgot the Meeting of this Day of yours, and We too will forget you - taste ye the Penalty of Eternity for your (evil) deeds!"

Sura al-Jāthiyah 45:34

وَقِيلَ ٱلْيَوْمَ نَنسَىٰكُمْ كَمَا نَسِيتُمْ لِقَآءَ يَوْمِكُمْ هَٰذَا وَمَأْوَىٰكُمُ ٱلنَّارُ وَمَا لَكُم مِّن نَّٰصِرِينَ

wa-qīla l-yawma nansākum ka-mā nasītum liqāʾa yawmikum hādhā wa-maʾwākumu l-nāru wa-mā la-kum min nāṣirīna

It will also be said: "This Day We will forget you as ye forgot the meeting of this Day of yours! and your abode is the Fire, and no helpers have ye!