Writings in the Science of Al-Jarh wa Ta’deel

This article is based on Usool Jarh wa Ta’deel wa Ilm al-Rijaal by Shaykh Nur al-Din ’Itr.

The documentation of hadith began during the lifetime of the Prophet Muhammad (ﷺ), as evidenced in various reports. However, systematic compilation of hadith occurred in the 2nd century Hijri under the directive of the just Caliph, Umar ibn Abdul Aziz. Among the earliest known compilations attributed to al-Makhool al-Dimashqi (d. 112 AH) are two works: Kitab al-Sunan and Kitab al-Masa’il fi al-Fiqh.

The Emergence of Writings on Narrators (Rijal)

The authorship focusing specifically on narrators developed later. The first known contributions include works by:

1. Al-Layth ibn Sa’d (94–175 AH): He compiled  al-Tareekh and was a contemporary of Imam Mālik.

2. Abdullah ibn al-Mubarak: Known for his historical writings.

3. Al-Waleed ibn Muslim (119–195 AH): Described by al-Dhahabi as having authored various classifications and histories.

Famous Authors and Works in Rijal Studies

During the 3rd century Hijri, known as the “Golden Age of the Sunnah,” writings on narrators expanded significantly, encompassing various dimensions and methodologies. The prolific nature of this era makes it challenging to enumerate all authors and their works. However, notable contributions include:

1. Muhammad ibn Sa’d (168–230 AH): He has a book titled Al-Tabaqat al-Kubra, which is unique in its genre. It is an extensive historical work arranged by tabaqat (generations), and it consists of five books. He is the first author whose work in biographical dictionaries has reached us.
2. Yahya ibn Ma’in (158–233 AH): He is one of the most prominent scholars in the field of Jarh wa Ta’deel (criticism and appraisal), and his students gathered the statements and issues related to it in books such as the works of Ibn al-Junaid, Abbas al-Duri, and Ibn al-Bura’. 
3. Ahmad ibn Hanbal (164–241 AH): He made many remarks in the field of biography and critique, with his companions narrating from him, including his son Abdullah. A major work was compiled from his remarks and published in a substantial volume, which benefited scholars greatly.
4. Muhammad ibn Ismail al-Bukhari (194–256 AH): He has three famous collections: Al-Kabir, Al-Awsat, and Al-Saghir. His works were printed in large editions, and his book Al-Duafa was also published.
5. Muhammad ibn Amr ibn Musa Abu Ja’far al-‘Aqili (d. 322 AH): He authored Al-Duafa al-Kabir in four volumes and is also considered a primary source for critiquing narrators.
6. Abd al-Rahman ibn Abi Hatim Muhammad ibn Idris al-Razi (240–327 AH): He is a significant figure in the field of Jarh wa Ta’deel (criticism and appraisal), and his father and Abu Zur’ah are major references in this area. His works were printed in two parts, with an important introduction on criticism and modification.
7. Abu Hatim Muhammad ibn Hibban al-Busti (275–354 AH): He authored two books: Al-Thiqaat (a shortened version) and Al-Duafa (an expanded version). He is well-known for his method in validating unknown narrators and for his strictness in criticism for even the slightest error. Both books have been printed.
8. Abu Ahmad Abdullah ibn Adi al-Jurjani (277–365 AH): A famous scholar in this field, known for his fairness. He authored a large book titled Al-Kamil fi Duafa’ al-Rijal, which includes details about each person who was criticized, even if they were trusted but criticized for weak chains of transmission. His specific studies are unique as he concludes each biography with a detailed analysis of each narrator.
9. Abu Bakr Ahmad ibn Ali ibn Thabit al-Khatib al-Baghdadi (392–463 AH): whose works surpassed those of most scholars in terms of quantity and variety. He is the author of Tarikh Baghdad (History of Baghdad), which mentions its scholars and the narrators of hadith in it, even if they merely passed through Baghdad. It is an important reference in many fields that is not found elsewhere.
10. Abd al-Ghani ibn Sarur al-Maqdisi (541–600 AH), a skilled memoriser, is known for his work Al-Kamal fi Asma’ al-Rijal (The Complete Book on the Names of Narrators). In it, he has included the narrators of the six major hadith collections, and this was the first book to compile the narrators from these collections.
11. Jamal al-Din Yusuf ibn al-Zaki al-Mizzi (654–742 AH), a distinguished Imam and scholar, is the author of Tahdhib al-Kamal, based on Al-Kamal by al-Maqdisi. He made additions and corrections to it, providing extensive biographical entries, distinguishing his work with a detailed investigation into the names of the narrators and their teachers and students, along with references to whom each of the six scholars transmitted from. This made his work a unique and essential reference in its field.
12. Shams al-Din Muhammad al-Dhahabi (673–748 AH): A prominent historian and expert in Islamic history, particularly in the field of hadith narrators. It is as though he compiled the entire ummah of the Prophet Muhammad ﷺ in one place. He studied them and classified them. He authored numerous books, including Mizan al-I’tidal (The Scale of Justice), in which he summarised Al-Kamil of Ibn Adi al-Jurjani and added to it valuable biographical information and important insights. His works also include Tadhkirat al-Huffaz, and Al-Kashf fi Ruwat al-Kutub al-Sitta (The Revelation of the Narrators of the Six Major Hadith Collections, summarized). Additionally, Al-Mughni fi al-Du’afa (The Enrichment on Weak Narrators, summarized) and Tadh-hib al-Tahdhib, which is a shortened version of Tahdhib al-Kamal by al-Mizzi.
13. Ahmad ibn Ali ibn Hajar (773–852 AH), a key figure who concluded this line of scholarship, has written more than two hundred works. His Tahdhib al-Tahdhib is a shortened version of Tahdhib al-Kamal, and he added valuable insights and additional benefits to the work. His book Lisan al-Mizan also added to the biographies found in Mizan al-I’tidal and corrected many entries. His work became an essential source for identifying weak narrators, with few exceptions in his compilation, and he contributed to the early identification of beneficial aspects in the works of the four great Imams—Abu Hanifa, Malik, al-Shafi’i, and Ahmad—along with many others.