Musannaf Ibn Abi Shaybah

Hazrat Alqamah (may Allah have mercy on him) narrates that Hazrat Khalid bin Walid (may Allah be pleased with him) said: There was some harsh exchange of words between me and Ammar (may Allah be pleased with him). So Ammar (may Allah be pleased with him) went and complained about me to the Messenger of Allah (peace and blessings be upon him). Then I also came to the service of the Messenger of Allah (peace and blessings be upon him) while he was complaining about me. During the conversation, the anger of Ammar (may Allah be pleased with him) kept increasing, and the Messenger of Allah (peace and blessings be upon him) remained silent. Then Ammar (may Allah be pleased with him) began to weep and said: O Messenger of Allah (peace and blessings be upon him)! Are you not listening? At this, the Messenger of Allah (peace and blessings be upon him) raised his head towards me and said: Whoever shows enmity to Ammar, Allah Almighty will show enmity to that person, and whoever harbors malice against Ammar (may Allah be pleased with him), Allah Almighty will harbor malice against that person. Hazrat Khalid bin Walid (may Allah be pleased with him) says: I had left my house in such a state that nothing was more hateful to me than Ammar (may Allah be pleased with him). Then I met him, and he became pleased.