Silsilah as-Sahihah 2406 — Good character and its virtue

It is narrated from Sayyiduna Ali (may Allah be pleased with him), he says: When I took possession of the weapons of the Messenger of Allah (peace and blessings of Allah be upon him), I found a piece of paper in the sword of the Messenger of Allah (peace and blessings of Allah be upon him). It was written in it: "Maintain ties with the one who severs relations with you, treat well the one who treats you badly, and speak the truth even if it is against yourself."