Surah 44. Ad-Dukhan, Ayah 36

I.e., "bring our forefathers back to life and let them bear witness that there is a hereafter". This ironic demand accords with the saying of the unbelievers mentioned in 43:22 and {23}, "We found our forefathers agreed on what to believe - and, verily, it is in their footsteps that we find our guidance!" Thus, in the last resort, the fact that their ancestors did not believe in a hereafter is to them as conclusive an argument against it as the fact that nobody has as yet come back to life to confirm the truth of resurrection.