Vita Mahometi (Uncastillo)

[1] It is preserved in a single manuscript, now códice 10 in the church of Santa María la Mayor [es] in Uncastillo.

[2][4] The Vita Mahometi is an explicitly Christian work that seeks to expose Muḥammad as a false prophet motivated by sexual lust and a desire for political power.

The first part concerns Muḥammad's early life down to the Hijra, his flight from Mecca to Medina.

The fourth part, taking up about half the text, is an account of his false miracles and his miʿrāj or ascent to heaven.

[2] The account may be drawn from the Copto-Arabic Kitāb al-wāḍiḥ bi-l-ḥaqq, a Latin translation of which was available in Spain at the time.