Analysis of information sources in references of the Wikipedia article "عبد الرحمن بن عمر الصوفي" in Arabic language version.
Al-Sūf ī was an astronomer in the Arabic–Islamic area. He was of Persian origin, but wrote in Arabic, the language of all science in that time.</ref
Al-Sūf ī was an astronomer in the Arabic–Islamic area. He was of Persian origin, but wrote in Arabic, the language of all science in that time.</ref