Surah Al-A'raf 7:51

ٱلَّذِينَ ٱتَّخَذُوا۟ دِينَهُمْ لَهْوًا وَلَعِبًا وَغَرَّتْهُمُ ٱلْحَيَوٰةُ ٱلدُّنْيَا ۚ فَٱلْيَوْمَ نَنسَىٰهُمْ كَمَا نَسُوا۟ لِقَآءَ يَوْمِهِمْ هَـٰذَا وَمَا كَانُوا۟ بِـَٔايَـٰتِنَا يَجْحَدُونَ

Who took their religion as distraction and amusement and whom the worldly life deluded." So today We will forget them just as they forgot the meeting of this Day of theirs and for having rejected Our verses.

Translation: Saheeh International

Tafsir

those who took their religion for a diversion and a game and whom the life of this world has deluded.’ Therefore today We have forgotten them We have left them in the Fire just as they forgot the encounter of this day of theirs when they neglected to perform good deeds for it and because they used to deny Our signs.

Excerpt from Tafsir al-Jalalayn, commentary on 7:51, via Quran.com. The reader has the full commentary and 9 more tafsirs.