Prophet sallallahu alaihi wasallam said: "A person from my ummah will be summoned in front of everyone on the Day of Resurrection. Ninety-nine scrolls will be unfurled for him, each scroll extending as far as the eye can see. Then it will be said: Do you deny any of this *? So the man will reply: No, 0 Lord. Then it will be said: Do you have any excuse or any good deed? The man, in a state of terror, will answer: No. It will then be said: Rather, you do have some good deeds and no injustice will befall you this Day.
So a parchment will be taken out for him, upon which there will be the testification of laa ilaaha illallaah and the testification that Muhammad is the Slave and Messenger of Allah.
The man will say: 0h Lord, what is this parchment in comparison to those scrolls! It will be said to him: No injustice shall befall you. The scrolls will then be placed in one of the scales and the parchment in the other; the scrolls will be light in weight, whereas the parchment will be heavy." ( Reported by at-Tirmidhee (no.2641), from Abdullaah ibn Amr radhiyallahu anhu. It was declared to be saheeh by Shaykh al-Albaanee in as-Saheehah (no.135).*