وَالْجَنَّةُ وَالنَّارُ مَخْلُوقَتَانِ لَا تَفْنَيَانِ أَبَدًا وَلَا تَبِيدَانِ
Paradise and Hell have both been created. They will never perish or cease to exist.
Clause structure: The dual endings in lā tafnayāni and lā tabīdāni refer to Paradise and Hell together. Abadan underscores lasting continuance; the second negation reinforces this.
Meaning and inference: Paradise and Hell are created, yet being created does not itself imply that they must cease to exist.
Limit of inference: Having an origin and having an end are separate questions; the passage does not support an automatic inference of inevitable annihilation.