Hadis Sambhar — Hadith #38421

A man said to the Messenger of Allah (peace and blessings of Allah be upon him), “How will I know whether I have done good or evil?” The Prophet (peace be upon him) said, “When you hear your neighbor saying that you have done a good deed, Then you have done (really) well. And when you hear from your neighbor that you have done evil, then you have (truly) done evil.” (Ahmad 3808, Ibn Majah 4222-4223, Tabarani 10280, Sahih al-Jameh no. 610)