سورة As-Saaffaat 37:16

أَءِذَا مِتْنَا وَكُنَّا تُرَابًۭا وَعِظَـٰمًا أَءِنَّا لَمَبْعُوثُونَ ١٦

When we are dead and reduced to dust and bones, will we really be resurrected