It is narrated from Sayyiduna Abu Darda (may Allah be pleased with him), who reports from the Prophet (peace and blessings of Allah be upon him) that he said: “On the Day of Judgment, nothing will be heavier in the scale than good character.”
Hadith Referenceالادب المفرد / كتاب / 270M
Hadith Gradingالألبانی:صحيح
Hadith Takhrij«صحيح : أخرجه الترمذي ، البر و الصلة : 2003 و أبوداؤد : 4799 و صححه ابن حبان ، ح : 1921 ، و سنده صحيح»