According to search-discovered classical scholarship, the principle that the 'righteous will be rewarded' is a cornerstone of Quranic justice, articulated powerfully in verses 2:62 and 5:69. The theme centers on the universal criteria for salvation: sincere Belief in Allah and the Last Day (`Iman`) and the performance of Righteous Deeds (`'Amal Salih`). Tafsir Ibn Kathir clarifies that these verses were revealed to repudiate the Jewish belief of exclusive salvation, establishing that divine reward is based on merit, not mere religious affiliation. This principle applied to the monotheistic followers of previous prophets in their own times. After the final revelation, the definition of belief and righteous action necessarily includes affirmation of the Prophet Muhammad ﷺ. This synthesis establishes that Allah's justice is perfect and that sincere faith, validated by good works, is the unwavering path to His reward.