Absolving is one of the most important issues in Shiite texts and documents. There are some quotes in Shiite documents that clarify absolving Sunni Caliphs, especially first and second Caliphs. That is an important issue in the relations between Muslim branches. This paper tries to evaluate different quotes about absolving Caliphs in Shiite documents. It is done by analyzing library data. The results show that such quotes contradict the verse of Quran invites to unity, especial quotes about absolving, Ahl_al_beyt’s manner, the principle of piety and secrecy, etc., and are not validatable. Some of the reasons for the weakness of such quotes are hierarchy, the unreliability of some narrators, etc., which results through document analysis. Another result of analyzing quotes' origins is the invalidity of some primary sources. However, proving such an issue doesn’t mean denying the Caliphs absolving in Shiite beliefs. Avoiding to declare Caliphs absolving is very important, also swearing and slander.
