19. Here, the word used is ghilman-ul lahum and not ghilman-u-hum. If ghilman-u-hum had been used, it would have meant that their servants in the world would be made their servants in Paradise too; whereas whoever from the world goes to Paradise, will go there on the basis of his own work and entitlement, and there is no reason that after his entry in Paradise he may be made a servant of the same master whom he had been serving in the world. But it can also be that a servant on account of his deeds may attain a higher rank than his master in Paradise. Therefore, by using ghilman-ul-lahum no room has been left for this suspicion. This word provides the explanation that these will be the boys who will be exclusively appointed for their service in Paradise. (For further explanation, see( E.N. 26 of Surah As-Saffat).