According to search-discovered classical Islamic scholarship, the concept of the 'Righteous' (As-Salih) signifies a state of complete spiritual and moral soundness. The great exegete Al-Tabari explains that the Arabic root ص-ل-ح (ṣ-l-ḥ) conveys being free from corruption and being fit-for-purpose. This implies a person whose inner faith and outer actions are harmoniously aligned with divine will. Ibn Kathir, in his tafsir on numerous verses, consistently links righteousness to the combination of correct belief (Iman) and righteous deeds (Amal Salih), emphasizing that one cannot exist without the other. This synthesis is crucial, as the Quran places the Salihun in the highest company in Paradise, alongside prophets, the truthful, and martyrs (4:69). Al-Qurtubi further elaborates on the practical dimension, stating that the righteous are those who fulfill their duties to Allah and to creation. Thus, across the 33 key Quranic verses on this topic, a unified understanding emerges: the righteous are not merely passive 'good people,' but are actively sound, virtuous, and reformative individuals who embody the core purpose of their creation.