يَطُوفُ عَلَيْهِمْ وِلْدَٰنٌ مُّخَلَّدُونَ
Compare 56:17 and 52:24
highlighted words differ between verses
وَيَطُوفُ عَلَيْهِمْ غِلْمَانٌ لَّهُمْ كَأَنَّهُمْ لُؤْلُؤٌ مَّكْنُونٌ
Both describe immortal youths serving in Paradise but 52:24 adds the simile 'ka'annahum lu'lu'un maknun' (like preserved pearls) while 56:17 describes them without this simile.
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