INTERNATIONAL JOURNAL OF PROFESSIONAL STUDIES

This research aims to highlight the contributions of Muslim scholars to the fields of transmitted and rational sciences by examining two prominent figures: Mu?ammad ibn M?s? al-Khw?rizm? and Th?bit ibn Qurra. These two scholars played a fundamental role in developing the foundations of human knowledge by integrating transmitted knowledge with rational inquiry and by linking earlier scientific heritage to the Islamic intellectual renaissance. The study addresses various aspects of their works. Al-Khw?rizm? focused on mathematics, astronomy, and geography, and contributed to establishing the foundations of algebra, which represented a major intellectual revolution in the history of science. Th?bit ibn Qurra, on the other hand, excelled in translation and the scientific interpretation of texts, in addition to his contributions to philosophy, medicine, and astronomy, reflecting his role in transmitting earlier sciences into the Islamic milieu and further developing them. The research concludes that the contributions of these scholars were not merely acts of transmission, but involved reformulation and development that produced an original scientific methodology, which later became a foundation for modern sciences. It also emphasizes that studying their efforts helps in understanding the position of Islamic civilization in the scientific and intellectual history of humanity.

Keywords: Al-Khwarizmi; Th?bit ibn Qurra; Islamic Civilization; Rational Sciences; Transmitted Sciences; Algebra; Islamic Intellectual Heritage.