علي بن يوسف
Born in Buzanjird near Hamadan in 1062, he moved from Hamadan to Baghdad when he was eighteen years of age. He studied the Shafi'i school of fiqh under the supervision of the master of his time, Shaykh Ibrahim ibn Ali ibn Yusuf al-Fairuzabadi. He kept association in Baghdad with the great scholar, Abu Ishaq ash-Shirazi, who gave him greater deference than to any of his other students although he was the youngest. But he was a Hanafi Maturidi unlike his teachers.