Surah Al-Kahf, Verse 35
وَدَخَلَ جَنَّتَهُۥ وَهُوَ ظَالِمٌۭ لِّنَفْسِهِۦ قَالَ مَآ أَظُنُّ أَن تَبِيدَ هَٰذِهِۦٓ أَبَدًۭا
Translation — Sahih International
And he entered his garden while he was unjust to himself. He said, "I do not think that this will perish - ever.
Source
Kur'an-ı Kerim, Kehf Suresi 18:35
https://kuran.diyanet.gov.tr/mushaf/kuran-meal-2/18-suresi-35-ayet