Hadith on Manners: Remain upright, make your character excellent

Mu’adh ibn Jabal reported: He intended to travel, so he said, “O Prophet of Allah, instruct me.” The Prophet, peace and blessings be upon him, said, “Worship Allah and associate nothing with him.” Mu’adh said, “O Prophet of Allah, tell me more.” The Prophet said, “If you do a bad deed, follow it with a good deed.” Mu’adh said, “O Messenger of Allah, tell me more.” The Prophet said, “Have integrity and make your character excellent.”

Source: Ṣaḥīḥ Ibn Ḥibbān 529

Grade: Hasan (fair) according to Al-Albani

عن معاذ بن جبل أنه أَرَادَ سَفَرًا فقَالَ يَا نَبِيَّ اللَّهِ أَوْصِنِي قَالَ اعْبُدِ اللَّهَ لا تُشْرِكْ بِهِ شَيْئًا قَالَ يَا نَبِيَّ اللَّهِ زِدْنِي قَالَ إِذَا أَسَأْتَ فَأَحْسِنْ قَالَ يَا رَسُولَ اللَّهِ زِدْنِي قَالَ اسْتَقِمْ وَلْيَحْسُنْ خُلُقُكَ

529 صحيح ابن حبان كتاب البر والإحسان فصل من البر والإحسان

2654 المحدث الألباني خلاصة حكم المحدث حسن في صحيح الترغيب