Is the origin of the Messenger, may God's prayers and peace be upon him, non-Arab, and do "Adnanis" or "Musta'ribs" mean that they are not originally Arabs?

Islam does not base rulings on lineage; the most honored among people in the sight of Allah are the most pious among them. Shaykh al-Islam Ibn Taymiyyah affirmed that the Qur’an does not praise or condemn anyone based on their lineage, but rather on faith and piety. The Prophet Muhammad (peace be upon him) was an Arab and his tongue was Arabic, and the Qur'an was revealed in his language. The Adnanites, including the Prophet, are considered part of the 'Arab al-Musta'ribah (Arabized Arabs); Arabic is the language, and these were the most eloquent speakers of the language of the Dhad. Genealogists have divided Arabs into 'Arab al-'Aribah (Qahtanites) and 'Arab al-Musta'ribah (Adnanites). Both will return to their Lord on the Day of Judgment, and lineages will hold no value then.