Ja'd b. Dirham was a teacher of the last Umayyad caliph, Marwan II, and is described as a Dahrī and Zindīq (heretic) for being the first person to state that God does not speak, hence the Quran is created.
Jahm was killed during the first attempt to take Merv in 746, though the revolt greatly weakened Umayyad power and indirectly contributed to the success of the Abbasid Revolution.
[7] Establishing the positive content of Jahm's doctrines is difficult, as they are reproduced (in an abbreviated form) only in later polemical works that are impossible to verify.
[13] Muqatil set up a rival movement to the Jahmiyyah known as the Muqatiliyyah, and Sunni Muslims have identified themselves as being between what they view as two extremes (negation and likening of the divine attributes, Ta'til and Tasbih).
[19] Like Muqatil, Uthman bin Sa'id himself received criticism and there have been scholars who have criticised him as going to the opposite extreme to Jahm, being a Mujassim (anthropomorphist).
[23] Al-Bukhari adopted the teachings of the traditionalist and scholar of Kalam Ibn Kullab alongside al-Karabisi in matters of creed, who also repudiated the Jahmiyyah.