Ibn Hajar al-Asqalani

Ibn Hajar al Asqalani ., or simply ibn Ḥajar, was a classic Islamic scholar "whose life work constitutes the final summation of the science of hadith." He authored some 150 works on hadith, history, biography, exegesis, poetry, and the Shafi'i school of jurisprudence, the most valued of which being his commentary of Sahih al-Bukhari, titled Fath al-Bari. He is known by the honorific epithets Hafiz al-Asr, Shaykh al-Islam, and Amir al-Mu'minin fi al-Hadith.