Abd Allah ibn Ibad al-Tamimi (Arabic: عبدالله بن إباض التميمي, romanized: ʿAbd Allāh ibn Ibāḍ al-Tamīmī; died c. 700) was an Arab Islamic scholar and a leader of the Kharijites from Basra, of the tribe of Banū Saʿd of Tamīm.
After the siege was lifted, the Kharijites were disappointed by Ibn al-Zubayr's refusal to denounce the late Caliph ʿUthmān and returned to Basra.
[2] Ibn Ibāḍ succeeded his father[2] and wrote a defence of those Kharijites who stayed behind.
[1] By defending the Basrans against the charge of polytheism and accusing them of no more than "ingratitude", he justified the decision of true Muslims to live among them.
It does ascribe to Ibn Ibāḍ two surviving letters addressed to the Umayyad caliph ʿAbd al-Malik.