This article, the third part of a series on Salman al-Farisi (RA), delves into his profound wisdom and pivotal role in early Islamic history. It highlights his strategic advice during the Battle of the Trench, where his Persian roots allowed him to suggest a novel defensive tactic. The text also emphasizes Salman's spiritual stature, noting the Prophet Muhammad's (PBUH) declaration that he was "one of us, of my household". Furthermore, the source illustrates his ascetic lifestyle as governor of Madain, preferring to live simply and generously, embodying humility and detachment from worldly possessions, and dispensing wisdom up to his death.