An-Nawawi's 40 Hadith 18
الأربعون النووية#18Not gradedOn the authority of Abu Dharr Jundub ibn Junadah, and Abu Abdur-Rahman Muadh bin Jabal (may Allah be pleased with him), that the Messenger of Allah (peace and blessings of Allah be upon him) said: 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
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
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In-book reference: 1:18