Translation of the verse 51 from Surah Al-Isra’ : Number of verses 111 - - page 287 - Part 15.
"Or some created thing that is yet greater (or harder) in your breasts (thoughts to be resurrected, even then you shall be resurrected)" Then, they will say: "Who shall bring us back (to life)?" Say: "He Who created you first!" Then, they will shake their heads at you and say: "When will that be?" Say: "Perhaps it is near!"
Or [any] creation of that which is great within your breasts." And they will say, "Who will restore us?" Say, "He who brought you forth the first time." Then they will nod their heads toward you and say, "When is that?" Say, "Perhaps it will be soon -
(17:51) or even something harder than this which you consider in your minds impossible to be brought to life." At this they will ask, "Who is he who will bring us back to life?" Say to them, "The same Being Who brought you to life in the first instance." Then they will shake their heads at you and ask *55 . "Well, when will this happen?" Say, "That time may be near at hand.
*55) "They will shake their heads at you" in astonishment or to express doubt or disapproval or to scoff at you.