Abu Ubaida, Obaida, or Ubaydah (; AD 728–825) Ma’mar ibn ul-Muthanna-Abu al-Mukhtar Firas b. Khindif was an early Muslim scholar of Arabic philology. Abu Ubaida was a controversial figure; later scholar Ibn Qutaybah remarked that Abu Ubaida "hated Arabs," though his contemporaries still considered him perhaps the most well-rounded scholar of his age. Whether or not Abu Ubaida was truly a supporter of the Shu'ubiyya is a matter of debate. Life Abu Ubaida was originally of Persian Jewish descent. In his youth, he was a pupil of Abu 'Amr ibn al-'Ala', Yunus ibn Habib and Al-Akhfash al-Akbar, was later a contemporary of Al-Asmaʿi, and in 803 he was called to Baghdad by the Caliph Harun al-Rashid. In one incident recounted by numerous historians, the Caliph al-Rashid brought forth a horse and asked both Al-Asmaʿi and Abu 'Ubaida (who had also written extensively about zoology) to identify the correct terms for each part of the horse's anatomy. Abu 'Ubaida excused himself from the challenge, saying that he was a linguist and anthologist rather than a veterinarian; Al-Asmaʿi then leaped onto the horse, identified every part of its body and gave examples from Bedouin Arab poetry establishing the terms as proper Arabic vocabulary. Among his students was the noted musician Ishaq al-Mawsili. He was one of the most learned and authoritative scholars of his time in all matters pertaining to the Arabic language, antiquities and stories, and is constantly cited by later authors and compilers. Al-Jahiz held him to be the most learned scholar in all branches of human knowledge, and Ibn Hisham accepted his interpretation even of passages in the Qur'an. Although Abu 'Ubaida couldn't recite a single verse of the Qur'an without committing errors in pronunciation, he was considered an expert on the linguistic meanings of the verses, especially in regard to rarely used vocabulary. The titles of 105 of his works are mentioned in the Fihrist of Ibn al-Nadim, and his Book of Days is the basis of parts of the history of Ibn al-Athir and of the Kitab al-Aghani of Abu al-Faraj al-Isfahani, but nothing of his (except a song) seems to exist now in an independent form. He died in Basra in 825. Legacy The exact nature of Abu Ubaida's religious and ethnocentric views is a matter of debate. Hamilton Alexander Rosskeen Gibb holds that prior to Ibn Qutaybah's accusation centuries later, none had accused Abu Ubaida