Muhammad ibn Musa al-Khwarizmi
Muhammad ibn Musa al-Khwarizmi (c. 780 – c. 850) was a non-Arab polymath from Persia.
He was looked down upon by respected Islamic scholars. Ibn Taymiyyah wrote about Khwarizmi:
انه وإن كان علمه صحيحا إلا إن العلوم الشرعية مستغنية عنه وعن غيره
Even if his science is correct, regardless, the Islamic sciences are dispensed of him and his likes.