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Diya' al-Din Iraqi

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Diya' al-Din Iraqi
Diya' al-Din 'Iraqi.jpg
Personal Information
Full Name Diya' al-Din Ali b. Muhammad Iraqi
Well-Known As Aqa Dia' Iraqi
Birth 1278/1861
Residence Arak
Studied in Isfahan, Najaf
Death 1361/1942
Burial Place The holy shrine of Imam Ali (a)
Scholarly Information
Professors Sayyid Muhammad Fisharaki, Akhund Khurasani, Sayyid Muhammad Kazim Yazdi
Students Sayyid Muhammad Taqi khwansari, Sayyid Abu al-Qasim Khoei, Sayyid 'Ali Kashani Yathribi etc.
Works Maqalat al-usul

Ḍīyaʾ al-Dīn ʿAlī b. Mulla Muḥammad ʿIrāqī (Arabic: ضیاءالدین علي ابن ملا محمد عراقي) (b. 1278/1861 - d. 1361/1942), famous as Aqa Diya 'Iraqi, great shi'a jurist and expert in usul al-fiqh in the 14th/20th century was born in Sultanabad, Arak, Iran.

He immigrated to Isfahan and then Najaf and was a student of Sayyid Muhammad Fisharaki, Akhund Khurasani, Sayyid Muhammad Kazim Yazdi.

His great scholarly endeavor made him recognized as an undisputed master in usul al-fiqh and a renewer of this discipline.

Sayyid Muhammad Taqi khwansari, Sayyid Abu al-Qasim Khoei, Sayyid 'Ali Kashani Yathribi and Sayyid Muhsin Hakim are few of his students.


He was born in Sultanabad of Arak, Iran. His father was Akhund Mulla Muhammad Kabir 'Iraqi (Araki). He passed away on Dhu l-Qa'da 28, 1361/December 7, 1942 in Najaf and was buried in the holy shrine of Imam Ali (a).

Education and Professors

He was given elementary education by his father and some other teachers in his hometown. Seeking more Knowledge, he first immigrated to Isfahan and then to Najaf. There, he participated in courses of great scholars of Najaf:

From early years of education, he was known for his talent and a genius and soon, he became famous for his comprehensive knowledge and profound theories and gained the attention and respect of his teachers. He was known as one of Akhund Khurasani's pupils and had a high position among teachers the Shi'a Seminary.

Status as a Professor

After the demise of Akhund Khurasani(1329/1911) Aqa Diya' started his advanced level (kharij) classes and became an undisputed master and a renewer of usul al-fiqh. Many of Akhund Khurasani's students attended Aqa Diya's classes. Soon afterward, he became a marja'.

He was famous for his patience and his classes were widely popular, not only because of his comprehensive and profound knowledge but also because of the atmosphere in which students could freely express their ideas, especially in comparison to the classes of his great contemporaries who would give less chance to their students for giving different ideas in the class.


Aqa Diya' was a patient and welcoming teacher for over 30 years and naturally gained a great popularity and hundreds of students benefited his classes and reached the level of ijtihad. Following are some of his famous students:

Maqalat al-usul, the most important work of Aqa Diya 'Iraqi

Some of his students transcribed his classes on usul al-fiqh. Mirza Hashim Amuli and Shaykh Muhammad Taqi Burujirdi wrote two books of those transcriptions in Najaf.


Aqa Diya' wrote several works in Arabic, most of which are commentaries on different fields of Shi'a jurisprudence. Some of his important works are as follows:

  • Al-Hashia 'ala bay' al-makasib (comments on the chapter of bay' of al-Maksib regarding the rulings of buying and selling)


The material for this article is mainly taken from آقا ضیاء عراقی in Farsi WikiShia.