As-Sajdah - 32:14

فَذُوقُوا بِمَا نَسِيتُمْ لِقَاء يَوْمِكُمْ هَذَا إِنَّا نَسِينَاكُمْ وَذُوقُوا عَذَابَ الْخُلْدِ بِمَا كُنتُمْ تَعْمَلُونَ
[32:14]
So taste, because you neglected the meeting of this day of yours; surely We forsake you; and taste the abiding chastisement for what you did.
"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!"
So taste (the evil of your deeds). Forasmuch as ye forgot the meeting of this your day, lo! We forget you. Taste the doom of immortality because of what ye used to do.