Analysis of hadiths concerning Harut and Marut

Citing names of Harut and Marut in the holy Quran and consequently by hadiths from infallible Imams and companions raised a variety of discussions among both Shii and Sunni scholars.These discussions have roots in those hadiths which introduce Harut and Marut as angels who commit sins on the Earth and as a result have been transformed into Venus. These hadiths have raised important questions in this regard: How did they commit these sins while they were infallible? Why they have been transformed into Venus while Venus existed from the early days of creation? This article first investigates hadiths concerning Harut and Marut in tafsirs, hadith collections and etc. then it deals with the Sunni and Shii hadiths in this regard.