عبد الله بن ياسين
Abdallah ibn Yasin was from the tribe of the Jazulah ("pronounced Guezula"), a Sanhaja sub-tribe from the Sous. A Maliki theologian, he was a disciple of Waggag ibn Zallu al-Lamti and studied in his Ribat, "Dar al-Murabitin" which was located in the village of Aglu, near present-day Tiznit. In 1046 the Gudala chief Yahya Ibn Ibrahim, came to the Ribat asking for someone to promulgate Islamic religious teachings amongst the Berber of the Adrar (present-day Mauritania) and Waggag ibn Zallu chose to send Abdallah ibn Yasin with him. The Sanhaja were at this stage only superficially Islamicised and still clung to many heathen practices, and so Ibn Yasin preached to them an orthodox Sunnism.