Izz al-Din ibn Hibatullah ibn Abi l-Hadid
Abu Hamid abd al-Hamid bin Hibat'Allah ibn Abi al-Hadid al Mutazili al-Mada'ini
|Title||Izz al-Deen (the Glory of the Deen)|
|Main interest(s)||History, Hadith|
|Notable work(s)||Sharh Nahjul Balagha|
Izz al-Din Abu Hamid abd al-Hamid bin Hibat'Allah ibn Abi al-Hadid al Mutazili al-Mada'ini (Arabic: عزالدين عبدالحميد بن هيبة الله بن أبي الحديد المعتزلي) (d. 656/1258) was an eminent Shafi  Mutazili scholar of his era and a writer.
Among his books is the famed commentary on the Nahj al-Balagha, Sharh Nahj al-Balagha.
Regarding the fabrications of Hadiths, he said:
Lies were introduced in Hadeeth on merits originally by Shi’a. They in the beginning fabricated many Hadeeth in favour of their man (Ali) motivated by enmity towards their opponents...
Regarding the early Caliphate, Al-Hadid explains Ali's position during the early Caliphates in his commentary in his famous Sharh Najhul Balagha:
...We found out however, that Ali approved of their leadership and said his prayers behind them. We, therefore, follow him and do not go beyond what he said or did. Have you not seen that we repudiated Mu'awiya when Ali did so? When Ali cursed Muawiya we did the same?
He also wrote regarding hadith forgeries sponsored by caliph Mu`awiya to oppose Ali. According to him:
Then Mu`awiya wrote to his governors saying: "Hadith about Uthman has increased and spread in every city, town and region. When this letter from me reaches you, summon the people to relate the merits of the Companions and the first caliphs. And do not let any Muslim relate anything about Ali without bringing something contradicting this about the Companions. This I like better and it pleases me more, it invalidates Abu Turab's claims and those of his Shi'ite in a more definitive way and it is for them more difficult to bear than the virtues and the merits of Uthman."
Mu`awiya's letters were read out to the people. And many forged reports concerning the merits of the Companions, in which there was no [grain of] truth, were related. The people went out of their way in relating reports in this vein until they spoke thereof in glowing terms from the pulpits. The teachers in the schools were instructed to teach their young pupils a vast quantity of these until they related them just as they studied the Qur'an and they taught these to their daughters, wives and servants. God knows how long they persisted in this. 
His master was Abu'l-Khayr Musaddiq ibn Shabib al-Wasiti (d. 605 A.H.) 
- Comments on the Peak of Eloquence (book by Abd al-Hamid) - (Arabic: Sharh Nahj al-Balagha)
- E.J. Brill's first encyclopaedia of Islam, 1913-1936, Volume 2 by Martijn Theodoor Houtsma, 1987, p736
- 'Ibn Khallikan's biographical dictionary by Ibn Khallikān, 1868, p543
- Authority and political culture in Shi'ism by Saïd Amir Arjomand, 1988, p233
- The life of Caliph Ali by Abul Hasan Alī Nadvī, Academy of Islamic Research & Publications, 1991, p88, "..The great Mutazilli scholar Ibn Abi al-Hadid, author of Sharh Nahjul Balagha..."
- The Islamic review: Volume 49, Khwajah Kamal al-Din, 1961, p29, "we will do well to quote the views of Ibn abi'l-Hadid who was a moderate Shi'ah..."
- Harvard Middle Eastern and Islamic review, Volumes 2-3, Center for Middle Eastern Studies, Harvard University, 1995, p55, "Ibn Abi al-Hadid (d. 1257), the well- known Mu'tazili ..."
- Sharh Najh ul Balagha by Izz al-Din Abd al-Hamid ibn Hibat-Allah ibn Abi al-Hadid, Dar al Kutub al Arabiyya al-Kubra, Cairo
- Harvard Middle Eastern and Islamic review, Volumes 2-3, Center for Middle Eastern Studies, Harvard University, 1995, p30