As soon as a Sinner or Nonbeliever enters his grave, he realizes his bad performance in the worldly life, and given a preview of the severe punishment that awaits him. Seeing his predicament, he wishes to be given a second chance to correct his deeds. Allah SWT says:
[For such is the state of the disbelievers], until, when death comes to one of them, he says, "My Lord, send me back
That I might do righteousness in that which I left behind." No! It is only a word he is saying; and behind them is a barrier until the Day they are resurrected.
Life in Al-Barzakh
Chapter 1, page 5 and 6
The Inevitable Journey
