Sources that his father was Magi? He himself was a Sunni Muslim(it's not debated)...weird, no? Actually, your logic says that everyone who wrote in Arabic is under suspicion of being a Persian untill proven otherwise, is self-contradictory. I'm an Arab, is my ethnicity under suspicion because I talk, write, and think in Arabic? Very self-contradictory indeed. Also, what's this about there being no debate about him being Persian? Who are these "informed Islamic scholars"? Their names? Sources where they said that he was Persian? Give me tangible proof...untill then, he's obviously an Arab by the bulk of evidence and sources I gave.