It has been suggested that Sibawayhi, the ethnically Persian Arabic grammar, borrowed heavily from the works of al-Ru'asi for the latter's infamous Kitab though there is no textual evidence to support this.[6] We do know of a linguistic exegesis of the Qur'an complete with a glossary which was penned by al-Ru'asi, but it is no longer extant.[7] Although he is regarded as the founder of the Kufan school, very few details are known about al-Ru'asi's life or his views on specific matters of dispute in Arabic grammar and he is rarely quoted by later grammarians.[8]
^Hana Zabarah, Perspectives on Tenth Century Arabic Grammar Al-Zajjaji's "Jumal" "Patterns in Grammatical Discourse, pg. 10. Ann Arbor: ProQuest, 2005. ISBN9780549478881
^ abArik Sadan, The Subjunctive Mood in Arabic Grammatical Thought, pg. 339. Volume 66 of Studies in Semitic Languages and Linguistics. Leiden: Brill Publishers, 2012. ISBN9789004232952
^Monique Bernards, "Pioneers of Arabic Language Studies." Taken from In the Shadow of Arabic: The Centrality of Language to Arabic Culture, pg. 214. Ed. Bilal Orfali. Volume 63 of Studies in Semitic Languages and Linguistics. Leiden: Brill Publishers, 2011. ISBN9789004215375
^ abM.G. Carter, Sibawayh, pg. 24. Part of the Makers of Islamic Civilization series. London: I.B. Tauris, 2004. ISBN9781850436713 father
^Hussein Abdul-Raof, Theological Approaches to Qur'anic Exegesis: A Practical Comparative, pg. 85. Volume 32 of Culture and civilization in the Middle East. London: Routledge, 2012. ISBN9780415449588