Sunni Islam is the largest branch of Islam, followed by 85–90% of the world's Muslims, and simultaneously the largest religious denomination in the world. Its name comes from the word Sunnah, referring to the tradition of Muhammad. The differences between Sunni and Shia Muslims arose from a disagreement over the succession to Muhammad and subsequently acquired broader political significance, as well as theological and juridical dimensions. According to Sunni traditions, Muhammad left no successor and the participants of the Saqifah event appointed Abu Bakr as the next-in-line. This contrasts with the Shia view, which holds that Muhammad appointed his son-in-law and cousin Ali ibn Abi Talib as his successor.
The Kharijites, also called al-Shurat, were an Islamic sect which emerged during the First Fitna (656–661). The first Kharijites were supporters of Ali who rebelled against his acceptance of arbitration talks to settle the conflict with his challenger, Mu'awiya, at the Battle of Siffin in 657. They asserted that "judgment belongs to God alone", which became their motto, and that rebels such as Mu'awiya had to be fought and overcome according to Qur'anic injunctions. Ali defeated the Kharijites at the Battle of Nahrawan in 658, but their insurrection continued. Ali was assassinated in 661 by a Kharijite dissident seeking revenge for the defeat at Nahrawan.
The Ibadi movement or Ibadism is a school of Islam. It has been called by some the third branch of Islam, along with Sunni Islam and Shia Islam. The followers of Ibadism are known as the Ibadis.
Abū Yazīd Makhlad ibn Kaydād, also known as the Man on the Donkey, was an Ibadi Berber of the Banu Ifran tribe who led a rebellion against the Fatimid Caliphate in Ifriqiya starting in 944. Abu Yazid conquered Kairouan for a time, but was eventually driven back and defeated by the Fatimid caliph al-Mansur bi-Nasr Allah.
Mu'ayyad al-Din Abu Isma'il al-Husayn ibn Ali ibn Muhammad ibn Abd al-Samad al-Du'ali al-Kināni al-Tughra'i was an Arab poet and alchemist.
The Sufris were Khariji Muslims in the seventh and eighth centuries. They established the Midrarid state at Sijilmassa, now in Morocco.
Islamic schools and branches have different understandings of Islam. There are many different sects or denominations, schools of Islamic jurisprudence, and schools of Islamic theology, or ʿaqīdah (creed). Within Islamic groups themselves there may be differences, such as different orders (tariqa) within Sufism, and within Sunnī Islam different schools of theology and jurisprudence. Groups in Islam may be numerous, or relatively small in size. Differences between the groups may not be well known to Muslims outside of scholarly circles or may have induced enough passion to have resulted in political and religious violence. There are informal movements driven by ideas as well as organized groups with a governing body. Some of the Islamic sects and groups regard certain others as deviant or accuse them of not being truly Muslim. Some Islamic sects and groups date back to the early history of Islam between the 7th and 9th centuries CE, whereas others have arisen much more recently or even in the 20th century. Still others were influential in their time but are no longer in existence. Muslims who do not belong to, do not self-identify with, or cannot be readily classified under one of the identifiable Islamic schools and branches are known as non-denominational Muslims.
ʿAbd Allāh ibn Ibāḍ al-Tamīmī was an Arab Islamic scholar and Kharijite from Basra, of the tribe of Banū Saʿd of Tamīm. In traditional Islamic historiography, he is the founder and namesake of Ibāḍī Islam.
Aḥmad ibn Muḥammad ibn al-Faqih al-Hamadani was a 10th-century Persian historian and geographer, famous for his Mukhtasar Kitab al-Buldan written in Arabic.
Abu al-Abbas Ahmad ibn Muhammad ibn al-Wannan was a Moroccan poet. His fame was based on his poem al-Shamaqmaqiyya, a survey of traditional Arabic culture in which he described the customs of the early Arabs. He is said to have been a member of an Arab family from the Tuwāt in southern Algeria and Morocco. Ibn al-Wannan also described himself as Ḥimyari, and claimed descent from the Anṣār.
Abu Ali al-Khayyat, often called by the Latin title Albohali in western sources,, was an Arab astrologer and a student of the astrologer and astronomer Mashallah ibn Athari.
Abu al-Sha'tha Jabir ibn Zayd al-Zahrani al-Azdi was a Muslim theologian and one of the founding figures of the Ibadis, the third major denomination of Islam. He was from the Tabi‘un, or second generation of Islam, and took leadership of the denomination after the death of Abd-Allah ibn Ibadh.
The Ibadi revolt was an Ibadi Kharijite uprising that occurred in ca. 747–748 against the Umayyad Caliphate. It established the first Ibadi imamate, a short-lived state located in the Arabian Peninsula.
Muḥakkima and al-Haruriyya refer to the Muslims who rejected arbitration between Ali and Mu'awiya I at the Battle of Siffin in 657 CE. The name Muḥakkima derives from their slogan lā ḥukma illā li-llāh, meaning "judgment (hukm) belongs to God alone". The name al-Haruriyya refers to their withdrawal from Ali's army to the village of Harura' near Kufa. This episode marked the start of the Kharijite movement, and the term muḥakkima is often also applied by extension to later Kharijites.
Abd al-Wahhab ibn Abd al-Rahman ibn Rustam, was the second imam of the Imamate of Tahart and founder of the Wahbi Ibadism movement. He was part of the Rustamid dynasty that ruled a theocracy in Algeria. He became ruler after the death of his father, Abd al-Rahman ibn Rustam and founded an external Islamic religious movement called Wahhabism relative to his name Abd al-Wahhab. His Ibadi Kharijite preaching is often incorrectly associated with the modern day Wahhabi movement.
Ibadism, or the Ibadi school of Islam, which has followers in Oman and elsewhere, has been the subject of much academic study. Much of the earlier writings from within the Islamic world presented Ibadism as a heresy. Western academic interest in Ibadism began in the mid-19th century, when translations of Ibadi texts and other literature began to become available. French and Italian scholars focussed mainly on Ibadism in North Africa, while John C. Wilkinson and other British scholars have studied it in Oman, where few texts were accessible until the 1970s.
Ibāḍī theology refers to the study of God within the Ibāḍī branch of Islam, and shares a path with Islamic theology. Although the school was founded in Basra, modern-day Iraq, its followers subsequently sought refuge in Oman, Yemen, Hadramawt in the southeast peninsula of Arabia, and North Africa. Though largely ignored by the mainstream of Arab and Muslim scholarship, and scarcely tapped by Orientalist research, there does exist a continuous tradition of Ibāḍī scholarship throughout the centuries to this day.
Valerie Hoffman is an academic scholar on Islamic studies expertise on religion, anthropology of Islam and Ibadi studies.
Abū Muḥammad ʿAbdallāh ibn Yazīd al-Fazārī (c. 748–795), was an Ibadi scholar of theology hailing from the Arab tribe of Banu Fazara. His works comprise the earliest extant body of Islamic theology and considered by scholars as an important source for studying the first development of rational theology in Islam.
Abu Bilal Mirdas ibn Udayya al-Tamimi was the leader of quietist Kharijites of Basra during the early years of the Umayyad Caliphate. He was the brother of Urwa ibn Udayya, one of the instigator of the Kharijite movement at the Battle of Siffin, in which Abu Bilal himself participated. After the defeat of the Kharijites at the Battle of Nahrawan in 658, he adopted political quietism and opposed the extremist Kharijites. In 680, in response to persecution by the Umayyad governor Ubayd Allah ibn Ziyad, Abu Bilal rose in rebellion and was killed in 681. His piety, military exploits, and death, which was seen by many as martyrdom, immortalized him among the later Kharijite circles. He is counted among the imams of the extinct Sufriyya sect of the Kharijites and is venerated by the Ibadiyya to this day.
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