Ishaq Ibn Rahwayh

Ishaq bin Ibrahim bin Makhlad bin Rahwayh Abu Ya'qub al-Hanzali al-Marwazi commonly known as Ishaq ibn Rahwayh was a Sunni Muslim scholar, jurist, muhaddith, exegete, and theologian. A close friend of Ahmad ibn Hanbal, he accompanied him on his travels to seek knowledge, and he was also a teacher of Bukhari and inspired him to compile the Sahih al-Bukhari. Among his only surviving work is al-Musnad, a hadith collection arranged by Companion narrators.