Compiled by Imam Yahya ibn Sharaf al-Nawawi
عَنْ أَبِي ذَرٍّ جُنْدَبِ بْنِ جُنَادَةَ، وَأَبِي عَبْدِ الرَّحْمَنِ مُعَاذِ بْنِ جَبَلٍ رَضِيَ اللَّهُ عَنْهُمَا، عَنْ رَسُولِ اللَّهِ صلى الله عليه و سلم قَالَ: "اتَّقِ اللَّهَ حَيْثُمَا كُنْت، وَأَتْبِعْ السَّيِّئَةَ الْحَسَنَةَ تَمْحُهَا، وَخَالِقْ النَّاسَ بِخُلُقٍ حَسَنٍ" . رَوَاهُ التِّرْمِذِيُّ [رقم:1987] وَقَالَ: حَدِيثٌ حَسَنٌ، وَفِي بَعْضِ النُّسَخِ: حَسَنٌ صَحِيحٌ.
Have taqwa (fear) of Allah wherever you may be, and follow up a bad deed with a good deed which will wipe it out, and behave well towards the people. It was related by at-Tirmidhi, who said it was a hasan (good) hadeeth, and in some copies it is stated to be a hasan saheeh hadeeth.