Quran 56, Al-Qaqi'a (The Inevitable)

56:47And they used to say: When we are dead and have become dust and bones, shall we then, forsooth, be raised again,

وَكَانُوا يَقُولُونَ أَئِذَا مِتْنَا وَكُنَّا تُرَابًا وَعِظَامًا أَإِنَّا لَمَبْعُوثُونَ