A person shall arrive on the Day of Judgement and shall be in possession of good deeds in the measure of vastly accumulated clouds or towering mountains. (Witnessing them) he shall ask: 'Oh My Lord! How can these be for me when I have not performed them?' God shall reply: 'This is your knowledge that you had taught and conveyed to the people, and which was acted upon after you had died.'

Biharul Anwar, Volume 2, Page 18 - Shi'ite Hadith