Allah says: "...Only those who are patient shall receive their rewards in full, without reckoning." [Surah Az-Zumar: 10]
Surah 23 Al Mumenoon (the believers) Ayah 62. On no soul do We place a burden greater than it can bear: before Us is a record which clearly shows the truth: they will never be wronged. Wala nukallifu nafsan illa wusAAaha waladayna kitabun yantiqu bialhaqqi wahum la yuthlamoona
