Abd al-Aziz ibn Baz
Yacoub memorized the entire Qur'an at an early age, and learned about the study of Hadith. He studied the six canonical books of Sunni Islam with Moroccan scholar Muhammad Abu Khubza, in addition to studying with fellow Egyptian Abd al-Hamid Kishk. He then lived in Saudi Arabia from 1980 to 1985, studying with Saudi clerics Abd al-Aziz ibn Baz and Muhammad ibn al Uthaymeen.