Muslims believe that on the day of resurrection mankind will stand before God waiting for judgment about their eternal destiny. Is it heaven or hell? The Qurʾān notes that people will know the answer to their fate depending on which hand they receive their book of deeds in. This book contains all the details of their life and actions, leaving out nothing.
Then as for him who will be given his Record in his right hand will say: “Take, read my Record! Surely I knew that I shall meet my accounting. So he shall be in a life of pleasure, in a lofty paradise (Q. 69: 19-21). As for those who receive their book in their left hand, their fate is different, God says: But as for him who will be given his book in his left hand, will say: “I wish that I had not been given my book! And that I had never known what my account was! I wish, would that it had been my end (death)! (Q. 69: 25-28).