Yahya bin al-Husayn bin al-Qasim ar-Rassi was …
Years: 893 - 893
Yahya bin al-Husayn bin al-Qasim ar-Rassi was born in Medina, being a Sayyid who traced his ancestry from Hasan, son of Ali (and also grandson of Muhammad).
His grandfather al-Qasim ar-Rassi (d. 860), who unsuccessfully tried to reach political leadership, owned a property close to Mecca, ar-Rass.
This is the origin of the name of the dynasty founded by Yahya, the Rassids.
Al-Qasim ar-Rassi was a major organizer of the theology and jurisprudence of the Zaydiyya division of the Shi’ites, which also had a following in Persia.
The Zaydiyya hail from Zaid (d. 740), second son of the fourth Shi'a imam Zayn al-Abidin.
Yahya has developed a theology based on his grandfather's teachings but has given it a more pronounced Shia profile.
His positions are close to the contemporary Mu'tazila school in Iraq which emphasizes reason and rational thinking.
In 893, Yahya enters Yemen from the Hijaz, trying to build up a Zaydiyya power base in the area.
His ambition is to rid the land from bad religious practices and bring the benefits of his own version of Islam.
At this time, the Tihamah lowland is ruled by the Ziyadid Dynasty (819-1018), originally governors of the Abbasid caliphs.
