During the lifetime of al-Bukhārī, ʿUthmān ibn Saʿīd composed a work which he entitled, “The Refutation by ʿUthmān ibn Saʿīd of the Obstinate Liar for the Slanders He Uttered against Allah concerning tawḥīd (divine oneness).” In that book he reproduces, word for word, the very same interpretations attributed to Bishr al-Mariṣī, in a manner that suggests al-Mariṣī was more thoroughly grounded in them and more conversant with both the transmitted texts and the rational proofs than are these later figures to whom the doctrine has come through him. ʿUthmān ibn Saʿīd then refuted those interpretations with an argument which, when an intelligent and perceptive reader studies it, enables him to grasp the true stance of the early generations, perceive the manifest strength of the evidence supporting their path, and recognize the weakness of the proofs advanced by their opponents.
[The unanimous condemnation of the Mariṣīs by the imams]:
Moreover, when one sees that the imams—the leaders of right guidance—have unanimously censured the Mariṣīs