"Surely All Mighty God does not do injustice to the weight of an atom, and if it is a good deed He multiplies it and gives from Himself a great reward." Sura An-Nisa - The Women - verse 40
Belief in the Judgement day commonly referred to as al-Qiyamah (the Resurrection) is considered a tenet of faith by all Muslims. The trials associated with the Judgement day are detailed in both the Qur'an and reported sayings of Prophet Muhammad (May the Peace and blessings of Al'Mighty God be upon him) which are called Hadith. Every human, Muslim and non-Muslim alike, is will be held accountable for their deeds and are believed to be judged by All Mighty God accordingly.