Detailed Explanation — Wisdom (443): The greatest regret on the Day of Resurrection will be the person who gained wealth by disobeying Allah, and the person who inherited it was the one who spent it in obedience to Allah.

In Wisdom (443), Imam Ali (a.s.) expresses his sorrow over the martyrdom of Malik Al-Ashtar. This event occurred when Malik was recognized as a significant military commander. His death marked an important turning point in Islamic history, as he was a close companion and loyal supporter of Imam Ali (a.s.). This wisdom reflects the greatness of Malik Al-Ashtar’s character. The Imam states that if he were a mountain, no one could reach his heights, and if he were a stone, no one could break his hardness. These words exemplify Malik's greatness and loyalty.

The main themes of this wisdom are loyalty, greatness, and the worth of a person. Imam Ali (a.s.) expresses sorrow for Malik Al-Ashtar’s passing and articulates his magnificence. This teaches us that a person's true worth lies in their loyalty and adherence to principles. Malik Al-Ashtar's life instructs us that a believer should always walk according to their principles.

The moral and spiritual lesson here is that individuals should embrace loyalty in their lives. Imam Ali (a.s.)’s wisdom reminds us that loyal people are always remembered, and their examples remain alive. It also teaches us that a person's greatness lies in their character and actions, not in their material status.