Sayyiduna Amr ibn Shas Aslami, may Allah be pleased with him, who was among the Companions of Hudaybiyyah, narrates: He says, I went towards Yemen in the company of Sayyiduna Ali, may Allah be pleased with him. During the journey, he was somewhat harsh with me, which caused me great discomfort in my heart. When I returned, I openly complained about him in the mosque. This matter reached the Messenger of Allah, peace and blessings be upon him. One day, I entered the mosque in the morning, and the Messenger of Allah, peace and blessings be upon him, was sitting with his Companions. When he saw me, he fixed his gaze upon me. Then, when I sat down, he, peace and blessings be upon him, said: O Amr! By Allah! You have caused me pain. I said: O Messenger of Allah! I seek refuge with Allah from causing you any harm. He, peace and blessings be upon him, said: Yes, whoever has hurt Ali has in fact caused me pain.