Since according to the traditional interpretations of Islamic law (sharīʿa) the punishment for apostasy is the death penalty,[3] and potentially a cause of strife and violence within the Muslim community (Ummah),[5] an ill-founded accusation of takfīr is considered a major forbidden act (haram) in Islamic jurisprudence,[6] with one ḥadīth declaring that one who wrongly declares another Muslim to be an unbeliever is himself an apostate.[7] Takfirism has been called a "minority ideology" which "advocates the killing of other Muslims declared to be unbelievers".[8]
The accusation itself is called takfīr, derived from the Arabic word kāfir ("unbeliever"), and is described as when "one who is a Muslim is declared impure."[9] An apostate is a murtad. In principle, in mainstream Sunnī Islam, the only group authorized to declare another Muslim a kāfir are the scholars of Islam (Ulama), and this is only done if all the prescribed legal precautions have been taken.[9] Traditionally, the declaration of takfīr was used against self-professed Muslims who denied one or more of the basic tenets of Islam. Throughout the history of Islam, Islamic denominations and movements such as Shīʿa Muslims and the Ahmadiyya Muslim Community have been accused of takfīr and labeled as kuffār ("unbelievers") by Sunnī Muslims, becoming victims of religious discrimination, violence, and persecution perpetrated against them over the centuries.[3][8][10][11][12][13] The term Takfiri has also been pejoritavely deployed by Shia jihadist groups to demonise and justify violence against Sunni Muslims.[14][15]
^ abcdPoljarevic, Emin (2021). "Theology of Violence-oriented Takfirism as a Political Theory: The Case of the Islamic State in Iraq and Syria (ISIS)". In Cusack, Carole M.; Upal, M. Afzal (eds.). Handbook of Islamic Sects and Movements. Brill Handbooks on Contemporary Religion. Vol. 21. Leiden and Boston: Brill Publishers. pp. 485–512. doi:10.1163/9789004435544_026. ISBN978-9004435544. ISSN1874-6691.
^Y. Zelin, Smyth, Aaron, Phillip (29 January 2014). "The Vocabulary of Sectarianism". The Washington Institute for Near East Policy. Archived from the original on 1 February 2022.{{cite web}}: CS1 maint: multiple names: authors list (link)
^ abc"Takfiri". Oxford Islamic Studies Online. Archived from the original on January 17, 2013. Retrieved 18 December 2020.
^Nedza, Justyna (2016). "The Sum of Its Parts: The State as Apostate in Contemporary Saudi Militant Islamism". In Adang, Camilla; Ansari, Hassan; Fierro, Maribel; Schmidtke, Sabine (eds.). Accusations of Unbelief in Islam: A Diachronic Perspective on Takfīr. Islamic History and Civilization. Vol. 123. Leiden and Boston: Brill Publishers. pp. 304–326. doi:10.1163/9789004307834_013. ISBN978-9004307834. ISSN0929-2403.