Al-Shaykh Al-Mufid

Abu 'Abd Allah Muhammad ibn Muhammad ibn al-Nu'man ibn 'Abd al-Salam al-'Ukbari al-Baghdadi, known as al-Shaykh al-Mufid and Ibn al-Mu'allim, was a prominent Twelver Shia Muslim scholar, jurist (faqīh) and theologian of Iraqi descent. His father was a teacher (mu'allim), hence his nickname Ibn al-Mu'allim. The title "al-Mufid" was given to him either by Muhammad al-Mahdi, the twelfth Shia Imam, or by al-Rummani, a Mu'tazilite scholar, after a discussion with him. The leader of the Shia community at his time, he was a staunch mutakallim, theologian, and jurist.