Through a valid chain of authority, Imam al-Sadiq (‘a) is reported to have said, “When a faithful believer dies and his funeral is attended by forty faithful believers who says these words about him, Almighty Allah will say to them: Your testimony is admitted and I will forgive him what you do not known about him but I do:”
According to another validly reported tradition, the Holy Prophet (s) has said, “The first title of a faithful believer’s Record of Deeds is what people say about him after his death. If they say good things, then his Record is good; but if they say evil things, then his Record is evil.”