Islamic scholar in the context of "Mufti"

Ijtihad (/ˌɪdʒtəˈhɑːd/ IJ-tə-HAHD; Arabic: اجتهاد ijtihād [ʔidʒ.tihaːd], lit. 'physical effort' or 'mental effort') is an Islamic legal term referring to independent reasoning by an expert in Islamic law, or the thorough exertion of a jurist's mental faculty in finding a solution to a legal question. It is contrasted with taqlid (imitation, conformity to legal precedent). According to classical Sunni theory, ijtihad requires expertise in the Arabic language, theology, revealed texts, and principles of jurisprudence (usul al-fiqh), and is not employed where authentic and authoritative texts (Qur'an and hadith) are considered unambiguous with regard to the question, or where there is an existing scholarly consensus (ijma). Ijtihad is considered to be a religious duty for those qualified to perform it. An Islamic scholar who is qualified to perform ijtihad is called a "mujtahid".

For the first five centuries of Islam, the practice of ijtihad continued in theory and practice among Sunni Muslims. It then first became subject to dispute in the 12th century. By the 14th century, development of classic Islamic jurisprudence or fiqh prompted leading Sunni jurists to state that the main legal questions in Islam had been addressed, and to call for the scope of ijtihad to be restricted. In the modern era, this gave rise to a perception amongst Orientalist scholars and sections of the Muslim public that the so-called "gate of ijtihad" was closed at the start of the classical era. While recent scholarship established that the practice of Ijtihad had never ceased in Islamic history, the extent and mechanisms of legal change in the post-formative period remain a subject of debate. Differences amongst the Fuqaha (jurists) prevented Sunni Muslims from reaching any consensus (Ijma) on the issues of continuity of Ijtihad and existence of Mujtahids. Thus, Ijtihad remained a key aspect of Islamic jurisprudence throughout the centuries. Ijtihad was practiced throughout the Early modern period and claims for ijtihad and its superiority over taqlid were voiced unremittingly.

Ibn Khaldun (27 May 1332 – 17 March 1406, 732–808 AH) was an Arab Islamic scholar, historian, philosopher, and sociologist. He is widely acknowledged to be one of the greatest social scientists of the Middle Ages, and considered by a number of scholars to be a major forerunner of historiography, sociology, economics, and demography studies.

His best-known book is the Muqaddimah or Prolegomena ("Introduction"), which he wrote in six months as he states in his autobiography. It later influenced 17th-century and 19th-century Ottoman historians such as Kâtip Çelebi, Mustafa Naima and Ahmed Cevdet Pasha, who used its theories to analyze the growth and decline of the Ottoman Empire. Ibn Khaldun interacted with Tamerlane, the founder of the Timurid Empire.

Haji Bektash Veli (Persian: حاجی بکتاش ولی, romanized: Ḥājī Baktāš Valī; Turkish: Hacı Bektaş Veli; Albanian: Haxhi Veli Bektashi; c. 1209–1271) was an Islamic scholar, mystic, saint and philosopher from Khorasan who lived and taught in Anatolia. His original name was Muhammad. He is also referred to as the "Sultan of Hearts" and the "Dervish of the Dervishes".

He is revered among Alevis for an Islamic understanding that is esoteric, rational and humanistic. He was one of the many figures who flourished in the Sultanate of Rum and had an important influence on the culture of Turkic nomads of Asia Minor.

Abū al-Ḥusayn Muslim ibn al-Ḥajjāj ibn Muslim ibn Ward al-Qushayrī an-Naysābūrī (Arabic: أبو الحسين مسلم بن الحجاج بن مسلم بن وَرْد القشيري النيسابوري; after 815 – May 875 CE / 206 – 261 AH), commonly known as Imam Muslim, was an Islamic scholar from the city of Nishapur, particularly known as a muhaddith (scholar of hadith). His hadith collection, known as Sahih Muslim, is one of the six major hadith collections in Sunni Islam and is regarded as one of the two most authentic (sahih) collections, alongside Sahih al-Bukhari.

Muhammad ibn Isa al-Tirmidhi (Arabic: محمد بن عيسى الترمذي, romanized: Muḥammad ibn ʿĪsā at-Tirmidhī; 824 – 9 October 892 CE / 209–279 AH), often referred to as Imām at-Termezī/Tirmidhī, was an Islamic scholar, and collector of hadith from Termez (early Khorasan and in present-day Uzbekistan). He wrote al-Jami` as-Sahih (known as Jami` at-Tirmidhi), one of the six canonical hadith compilations in Sunni Islam. He also wrote Shama'il Muhammadiyah (popularly known as Shama'il at-Tirmidhi), a compilation of hadiths concerning the person and character of the Islamic prophet, Muhammad. At-Tirmidhi was also well versed in Arabic grammar, favoring the school of Kufa over Basra due to the former's preservation of Arabic poetry as a primary source.

Malik ibn Anas (Arabic: مَالِك بْن أَنَس, romanized: Mālik ibn ʾAnas; c. 711–795), also known as Imam Malik, was a Muslim scholar, jurist, muhaddith and traditionalist who is the eponym of the Maliki school, one of the four schools of Islamic jurisprudence in Sunni Islam.

Born in Medina into the clan of Humayr which belonged to the Banu Taym of Quraysh, Malik studied under Hisham ibn Urwa, Ibn Shihab al-Zuhri, Ja'far al-Sadiq, Nafi ibn Sarjis and others. He rose to become the premier scholar of hadith in his day, Referred to as the Imam of Medina by his contemporaries, his views in matters of jurisprudence became highly cherished both in his own life and afterward, becoming the eponym of the Maliki school, one of the four major schools of Islamic jurisprudence. His school became the normative rite for Sunni practice in much of North Africa, al-Andalus (until the expulsion of medieval native Iberian Muslims), a vast portion of Egypt, some parts of Syria, Yemen, Sudan, Iraq, and Khorasan, and the prominent orders in Sufism, the Shadili and Tijani.

Abū al-Ḥasan ʻAlī ibn ʻAbdillāh ibn Jaʻfar al-Madīnī (778 CE/161 AH – 849/234) (Arabic: أبو الحسن علي بن عبد الله بن جعفر المديني) was a ninth-century Sunni Islamic scholar who was influential in the science of hadith. Alongside Ahmad ibn Hanbal, Ibn Abi Shaybah and Yahya ibn Ma'in, Ibn al-Madini has been considered by many Muslim specialists in hadith to be one of the four most significant authors in the field.

Yahya ibn Ma'in (Arabic: يحيى بن معين, romanized: Yaḥyā ibn Maʻīn; 774-847) was a classical Islamic scholar in the field of hadith. He was a close friend of Ahmad ibn Hanbal for much of his life. Ibn Ma'in is known to have spent all of his inheritance on seeking hadith to the extent he became extremely needy.