Musannaf Ibn Abi Shaybah 38174 — Reports from al-Shabi

Abu Nadrah said: Sayyiduna Umar (may Allah be pleased with him) sent Harim bin Hayyan in command of an army. Then Harim became angry with a man and ordered that he be struck on the neck, and it was done. Then he turned to his companions and said to them: May Allah deprive you of good! When I said this, why did you not advise me, and why did you not restrain me from my anger? By Allah, I will not lead you in any matter. Then he wrote to Sayyiduna Umar (may Allah be pleased with him): O Commander of the Faithful! I do not have the strength for any task concerning the subjects. Send someone else for this task.