Hadith 5095
وَعَن مُعاذٍ قَالَ: كانَ آخرُ مَا وصَّاني بِهِ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ حِينَ وَضَعْتُ رِجْلِي فِي الْغَرْزِ أَنْ قَالَ: «يَا مُعَاذُ أحسُنْ خُلُقكَ للنَّاس» . رَوَاهُ مَالك
Mu'adh (may Allah be pleased with him) narrates: When I placed my foot in the stirrup, the Messenger of Allah (peace and blessings of Allah be upon him) gave me his final advice, saying: "Mu'adh! Treat people with good manners." Its chain is weak. Narrated by Malik.