Al-Dhahabi in the context of "Historiography of early Islam"

Abu Hanifa (5 September 699 CE – 18 June 767 CE) was a Muslim scholar, ascetic and eponym of the Hanafi school of Sunni jurisprudence, which is by far the most widely followed in the modern day. His school predominates in Central Asia, Turkey, the Levant, Egypt, Russia, the Balkans and the Indian subcontinent.

He is best known for favoring the use of reason in his jurisprudential rulings, and even in his theology. He was named by al-Dhahabi as "one of the geniuses of the sons of Adam" who "combined jurisprudence, worship, scrupulousness, and generosity". In his lifetime, he was enormously popular among the massive slave underclass in Kufa, but made many enemies among Arabist traditionalists, especially for his promotion of reason over hadith and his ruling that Persian could be used in prayer.

Ahmad ibn Hanbal (Arabic: أحمد ابن حنبل, romanized: Aḥmad ibn Ḥanbal; (164-241 AH; 780 – 855 CE) was an Arab jurist and founder of the Hanbali school who is widely recognized as the scholar who memorized the most Hadiths in Islamic history. One of the most venerated Islamic intellectual figures, ibn Hanbal is notable for his unmatched memorization of over one million prophetic narrations, an unprecedented number that has never been claimed by any other muhaddith. Ibn Hanbal also compiled the largest hadith collection, al-Musnad, which has continued to exercise considerable influence on the field of hadith studies up to the present time, shaping the methodological framework later employed in both Sahih Bukhari and Sahih Muslim. Imam al-Dhahabi described him as “the true Imam, the proof of the religion, the master of hadith, and the leader of the Sunnah”. Imam Ali ibn al-Madini said: “Truly, Allah supported this religion through two men, to whom there is no third: Abu Bakr during the Ridda Wars, and Ahmad ibn Hanbal during the Mihna”.

Having studied jurisprudence and hadith under many teachers during his youth, Ibn Hanbal became famous in his later life for the crucial role he played in the Mihna instituted by the Abbasid caliph al-Ma'mun toward the end of his reign, in which the ruler gave official state support to the Mu'tazili doctrine of the Quran being created, a view that contradicted the orthodox position of the Quran being the eternal, uncreated word of God. Living in poverty throughout his lifetime working as a baker, and suffering physical persecution under the caliphs for his unflinching adherence to the traditional doctrine, Ibn Hanbal's fortitude in this particular event only bolstered his "resounding reputation" in the annals of Sunni history.

Abu al-Fida Isma'il ibn Umar ibn Kathir al-Dimashqi (Arabic: أبو الفداء إسماعيل بن عمر بن كثير الدمشقي, romanized: Abū al-Fidā' Ismā'īl ibn 'Umar ibn Kathīr al-Dimashqī; c. 1300–1373), known simply as Ibn Kathir, was an Arab Islamic exegete, historian and scholar. An expert on tafsir (Quranic exegesis), tarikh (history) and fiqh (Islamic jurisprudence), he is considered a leading authority on Sunni Islam.

Born in Bostra, Mamluk Sultanate, Ibn Kathir's teachers include al-Dhahabi and Ibn Taymiyya. He wrote several books, including a fourteen-volume universal history titled al-Bidaya wa'l-Nihaya (Arabic: البداية والنهاية).