Imam Ali’s Imprecation (pbuh) and Curse (la’n) in Nahj al- Balaghah

Imprecation and curse is the topics that discusses during the history of Islam and conflicts in which they existed. Howsoever at first imprecation (sabb) and curse (la'n) seems synonym but with accuracy on literal meaning and its usage in verses and hadiths we find that this two concepts are different. This differentiation creates the various confusion and accusations among the followers of the Islamic religion. This paper is a case study in sermons, letters and wisdom of Nahj al-balagha that comprising a kind of flout to some of his companion and someone else. After reviewing the results achieved that there is a difference between imprecation (sabb) and curse (la'n), And curse has different meaning and it means distance from mercy. And like Philological science the Qur'an conforms that difference. Also in Prophetic tradition we see curse on pagans and double dealers and enemies. This articles method is Libraries and has examined all sermons, letters and wisdom of Nahj al-balagha.