Sura 18 Al-Kahf (The Cave), ayah 35

1. وَدَخَلَ جَنَّتَهُ وَهُوَ ظَالِمٌ لِنَفْسِهِ قَالَ مَا أَظُنُّ أَنْ تَبِيدَ هَٰذِهِ أَبَدًا

   And he entered his garden while he was unjust to himself. He said, "I do not think that this will perish - ever.

   18:35

Translation: Saheeh International