Ijma (Arabic: إجماع, romanized: ijmāʿ, lit. 'consensus', IPA: [ʔid͡ʒ.maːʕ]) is an Arabic term referring to the consensus or agreement of the Islamic community on a point of Islamic law. Sunni Muslims regard it as one of the secondary sources of Sharia law, after the Qur'an, and the Sunnah.Exactly what group should represent the Muslim community in reaching the consensus is not agreed on by the various schools of Islamic jurisprudence. Some believe it should be the Sahaba (the first generation of Muslims) only; others the consensus of the Salaf (the first three generations of Muslims); or the consensus of Islamic lawyers, the jurists and scholars of the Muslim world, i.e. scholarly consensus; or the consensus of all the Muslim world, both scholars and lay people. The opposite of Ijma (i.e., lack of consensus on a point of Islamic law) is called ikhtilaf.
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Ijmāʿ in the context of Sunni Revival
The Sunni Revival was a period in Islamic history marked by the revival of the political fortunes of Sunni Islam, a renewed interest in Sunni law and theology and the spread of new styles in art and architecture. Conventionally, the revival lasted from 1055 until 1258.
Richard Bulliet has proposed that the term "recentering" better describes the period than "revival" or "renaissance". The period is characterized as much by developments within Sunnism as by Sunni relations with Shia Islam. In particular, it was a period of homogenization of Sunnism as scholars and leaders strove for ijmāʿ (consensus). Eric Chaney has argued that the Sunni Revival led to the decline of scientific output in the Islamic world.
View the full Wikipedia page for Sunni Revival