Apostasy from Islam

Apostasy in Islam (Arabic: ردة‎‎ riddah or ارتداد irtidād) is commonly defined as the conscious abandonment of Islam by a Muslim in word or through deed. It includes the act of converting to another religion by a person who was born in a Muslim family or who had previously accepted Islam. The definition of apostasy from Islam, and whether and how it should be punished are matters of controversy, and Islamic scholars differ in their opinions on these questions.

Apostasy in Islam includes within its scope not only the wilful renunciation of Islam by a Muslim through a declaration of their renunciation of the Islamic faith (whether for another religion or irreligiosity), or if lacking a declaration, then by specific deed of undergoing the rites of conversion into another religion, but also even denying, or merely questioning, any "fundamental tenet or creed" of Islam, such as the divinity of God, prophethood of Muhammad, or mocking God, or worshipping one or more idols. Different Muslim denominations and schools of thought may also hold different additional views of what each consider a fundamental tenet of the faith. Nevertheless, Muslim jurists from the early period, from different Muslim denominations and schools of thought, developed legal institutions to circumvent harsh punishment in allegations or charges of apostasy. These institutions set the standard for what counts as apostasy from Islam so high that at least prior to the 11th century practically no judgment of apostasy could be passed, though since then, these high standards of what counts for apostasy have not been consistently applied throughout the Muslim World.

The apostate term has also been used for people of religions that trace their origins to Islam, such as the Bahá'ís in Iran, even when the modern adherents of said religions may never have actually been Muslims themselves. Apostasy in Islam does not include acts against Islam or conversion to another religion that is involuntary, forced or done as concealment out of fear of persecution or during war (Taqiyya or Kitman).

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