﴿ جَنَّٰتِ عَدْنٍ ٱلَّتِى وَعَدَ ٱلرَّحْمَٰنُ عِبَادَهُۥ بِٱلْغَيْبِ ۚ إِنَّهُۥ كَانَ وَعْدُهُۥ مَأْتِيًّۭا ﴾

“[theirs will be the] gardens of perpetual bliss which the Most Gracious has promised unto His servants, in a realm which is beyond the reach of human perception: [and,] verily, His promise is ever sure of fulfilment!”

Allah then explained that Paradise will be theirs, saying: (Gardens of Eden, which the Beneficent hath, promised to His slaves in the Unseen) unseen to them. (Lo! His promise is ever sure of fulfilment) it will surely take place.