'the handsome'),[1] was a son of the sixth Shi'a imam, Ja'far al-Sadiq, who led a failed revolt against the Abbasid Caliphate in 815.
[3] Al-Dibaj's followers became known as the Shumaytiyya or Sumaytiyya sect, after their leader, Yaya ibn Abi Shumayt or Sumayt.
[11] In 900 CE, Muhammad ibn Zayd, the Zaydi ruler of Tabaristan, was killed in battle by the Sunni Samanids and subsequently beheaded.
His head was sent to the Samanid court located in Bukhara while his "headless torso (badan)" was sent to Jurjan to be buried in Muhammad al-Dibaj's burial site.
[12][13][14] According to the historian Al-Qummi, in 984 AD, a "a proper structure (turba) [on the burial site of Dibaj and Muhammad ibn Zayd's body] was erected only on the orders of the Buyid wazīr al-Ṣāḥib".