Who was the schoolmate of the Umar Khayyam (the great poet) and Hasan bin Sabah, the founder of the Batiniyah sect of the Abbassins?
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Who was the schoolmate of the Umar Khayyam (the great poet) and Hasan bin Sabah, the founder of the Batiniyah sect of the Abbassins Al-Farabi.
