Persian Origin 

It is a remarkable fact that, with few exceptions,most Muslim scholars in the intellectual sciences have been non-Arabs,thus the founders of grammar were Sibawaih and after him,al-Farsi and Az-Zajjaj.All of them were of Persian descent and they inven...ted rules of (Arabic) grammar.Great jurists were Persians.Only the Persians engaged in the task of preserving knowledge and writing systematic scholarly works.Ibn Khaldun

 If learning were suspended in the highest parts of heaven the Persians would attain it. محمّد

 The Persians ruled for a thousand years and did not need us Arabs even for a day. We have been ruling them for one or two centuries and cannot do without them for an hour. Abbasid Caliphate العبّاسيّون

There is no such thing as Pan-Arab peoples (because how can egyptians and babylonians who predated the 'Arabian people' be marginalized under one group of people). Egyptians and Mesopotamians were established civilization thousands of years before Arabs. Secondly, how can you deny the influence Persian/Iranians had on the 'Islamic Golden Age' and the scientific advancements made, especially in regards to archictecture, literature (Arab Grammar?), philosophy, agricultural practices, economics etc.

To be fair, its unjust that Muslims[Arabs] take most of the credit for the achievements made during that era when more than half of the scientists, scholars, intellectuals were of Persian/Iranian origin.(mplicity claims Muslims as Arabs)  

~~ditc~~