Belief in the Last Day is one of the pillars of faith in Islam.
Allah Almighty says in Surah al-Qiyamah:
''I swear by the Day of Resurrection. And I swear by the blaming soul. Does man think that We will not reassemble his bones? Yes indeed; We are Able to reconstruct his fingertips.'' (Verses 1-4)
Blaming soul is the soul of the believer. It constantly reproaches its master. If a sinner commits a sin, he reproaches: “Why have you sinned? Do you not fear Allah? What will you say in the Hereafter? ” If the owner does good deeds his soul reproaches, "Isn't it a little, can you do more?" The more good you do, the better it will be for you. '
In the next verse, Allah proceeds to produce proofs for those who deny the Doomsday.
''...Does man think that We will not reassemble his bones? Yes indeed; We are Able to reconstruct his fingertips.''
This verse is one of the scientific miracles of the Quran. The dead body buried in the ground will decay after a while. Most people do not believe in the resurrection of that person who has decayed and died.
Here's the reasoning: Well, why is the fingerprint, not the rest of the human body? This is because other members of the human body — eye, nose, or other — may resemble those of another human. Fingerprints are not repeating and they are not like those of anyone else.
This means that in Judgement Day Allah can creates countless fingers of all humans who have been as the world.