Refinement of the Soul
In Surat Ash-Shams, Allah swears by the nafs [here translated “soul” but better understood as “self”] saying {By the soul [nafs] and He Who proportioned it, and inspired it its wickedness and its righteousness; he has succeeded who purifies it, and he has failed who instills it (with corruption)}. (Ash-Shams: 7-9). The above Qur’anic verses