Musannaf Ibn Abi Shaybah

A man from the tribe of Abdul Qais narrates: I saw Hazrat Salman (may Allah be pleased with him) on a donkey in an army in which he was the commander. Both his shins were trembling and the people of the army were saying, "The commander has come! The commander has come!" Upon this, Hazrat Salman (may Allah be pleased with him) said: Surely, the decision of good and evil regarding this will be made after today. And he said: If you have the strength to eat dust and not become a commander over two men, then do so. And beware of the supplication of the oppressed, for there is nothing that can prevent it.