Al-Insan - 76:19

وَيَطُوفُ عَلَيْهِمْ وِلْدَانٌ مُّخَلَّدُونَ إِذَا رَأَيْتَهُمْ حَسِبْتَهُمْ لُؤْلُؤًا مَّنثُورًا
[76:19]
And round about them shall go youths never altering in age; when you see them you will think them to be scattered pearls.
And round about them will (serve) youths of perpetual (freshness): If thou seest them, thou wouldst think them scattered Pearls.
There wait on them immortal youths, whom, when thou seest, thou wouldst take for scattered pearls.