Translation of the verse 36 from Surah Ad-Dukhan : Number of verses 59 - - page 497 - Part 25.
"Then bring back our fore-fathers, if you speak the truth!"
Then bring [back] our forefathers, if you should be truthful."
(44:36) Bring back to us our fathers if you are truthful.' *31
*31) This was their reasoning: We have never seen a dead person resurrected to life. Therefore, we believe that there will be no other life after death. If you claim that there will be another life, then resurrect our forefathers from their graves, so that we are convinced of the life-after-death. If you do not do this, we would think that your claim is false. This was, as they thought, a very strong argument for the refutation of life-after-death, whereas it was absurd. Nobody had told them that the dead would return to this very world after being raised back to life, nor the Holy Prophet, nor any Muslim, had ever claimed that he could raise the dead back to life.
Source : Ad-Dukhan Verse 36: Then bring [back] our forefathers, if you should be truthful."