Muhammad ibn Yaʿqub Al-Kulayni (popularly known as Shaykh al-Kulayni) was a prominent Shia scholar and greatest Shia hadith collector who lived in the 9th and 10th centuries. He was the author of one of the four Shi’a primary hadith collections, al-Kafi.
Shaykh Kulayni’s meticulous research and dedication to authentic sources earned him respect among Shia scholars, and his contributions continue to influence Islamic scholarship to this day. His most famous work is “Al-Kafi,” a comprehensive compilation of Shia hadiths, covering various aspects of theology, jurisprudence, and ethics.
In this article, we shall examine the biography of Shaykh al-Kulayni focusing on his family background, birth, and early life, personality, teachers and students, and his literary works, death, and legacy.
Family Background of Shaykh Kulayni
Shaykh al-Kulayni’s family background is not extensively documented, but it is believed that he was from a scholarly family with a lineage of religious scholars and intellectuals.
His father’s name is Ya’qub ibn Ishaq who was among the scholars of his time and lived during the age of Minor Occultation[1]. Abu al-Hasan Ali ibn Muhammad known as ‘Alan al-Razi was the uncle of Shaykh al-Kulayni and Muhammad ibn ‘Aqil al-Kulayni, Ahmad ibn Muhammad and Muhammad ibn Ahmad were all relatives of Shaykh al-Kulayni and among great Shi’a scholars of their time[2].
Birth of Shaykh al-Kulayni
According to many biographers, it is believed that Muhammad ibn Yaʿqub [Shaykh al-Kulayni] was born in 864 CE (250 AH) in Kulayn, a village near Rey in present-day Iran[3]. Some historical evidence shows that he was born after the martyrdom of the eleventh Imam, Imam al-‘Askari (PBUH), at the time of Imam al-Mahdi (PBUH) and met some hadith transmitters who directly had heard hadiths from Imam al-Hadi (PBUH) and Imam al-‘Askari (PBUH).
However, Bahr al-‘Ulum considered it possible that Shaykh al-Kulayni lived during the life of Imam al-Hasan al-‘Askari[4] (PBUH). Ayatollah Khoei believed that his birth was after the martyrdom of Imam al-‘Askari[5] (PBUH).
Shaykh al-Kulayni’s epithet is Abu Ja’far and his title is Thiqat al-Islam[6]. He was the first Islamic scholar who was called “Thiqat al-Islam”[7]. Due to his God-wariness, knowledge, and merits, people referred to him for solving their religious questions and receiving rulings. Shaykh al-Kulayni was also called Silsili because he lived in Darb al-Silsila at Bab Kufa of Baghdad[8].
His Education
The religious upbringing of Shaykh al-Kulayni likely provided him with a strong foundation in Islamic studies, enabling him to pursue a career as a respected scholar and hadith collector. While specific details about Shaykh al-Kulayni’s education are not extensively documented, it’s believed that he received his early education in his hometown of Kulayn and thereafter went to Rey for further education.
According to the Shia view, Shaykh al-Kulayni is among a special class of Hadith narrators known as Rihalah-ye hadith (which means those who travelled in order to collect a hadith and met the persons considered to be the authority on hadith)[9].
Later, Shaykh al-Kulayni travelled to Qom, a major centre of Shia learning, where he pursued advanced studies under prominent scholars of his time. In Qom, he likely studied various Islamic sciences, including theology (‘Ilm al-kalam), jurisprudence (Fiqh), and hadith. He would have studied the works of renowned scholars and engaged in rigorous discussions and debates to deepen his understanding of Shia Islam.
Shaykh al-Kulayni’s dedication to learning and his thirst for knowledge likely led him to travel extensively in search of additional sources and teachings. His scholarly journey and diverse educational background contributed to his eventual compilation of “Al-Kafi,” which remains one of the most authoritative collections of Shia hadiths.
Shaykh al-Kulayni therefore travelled to Baghdad for this reason and lived there for twenty years, engaged in teaching and pursuing academic work, until he died in 329 AH/941 CE. According to historical evidence, Shaykh al-Kulayni went to Baghdad, which was among the great scientific centres after he finished writing al-Kafi in 327/938-9, two years before he passed away. Evidence for the fact that al-Kafi had finished before he went to Baghdad is that even though he lived at the time of the Four Deputies of Imam al-Mahdi (PBUH), he did not narrate any hadith directly from them[10].
Personality of Shaykh al-Kulayni
In the books of biography, the merits and virtues of Shaykh al-Kulayni are mentioned by all his advocates and critics. Concerning his fame, both the Shia and Sunni scholars referred to his rulings in Jurisprudence [Fiqh] and titled him Thiqat al-Islam. For instance, al-Shaykh al-Tusi wrote about him, in his book of Rijal thus: “Muhammad ibn Ya’qub al-Kulayni with the kunya of Abu Ja’far al-A’war, was a great scholar, especially in hadith. He has some written works mentioned in al-Kafi.”[11] In another instance, he described al-Kulayni as reliable (thiqa) and knowledgeable in narrations[12].
Similarly, another Shia scholar and biographer, Al-Najashi said about Shaykh al-Kulayni thus: “In his time, he [al-Kulayni] was the leader of Shia in Rey and the most reliable among them in hadiths and recording them. He compiled his great book named al-Kafi in 20 years.”[13]
Sayyid ibn Tawus mentioned that all scholars approved of the reliability and trustworthiness of Shaykh al-Kulayni. Other Shia scholars such as Ibn Shahrashub[14], ‘Allama al-Hilli[15], Ibn Dawud al-Hilli[16], al-Tafrishi[17], al-Ardabili[18] , and Sayyid Abu l-Qasim al-Khoei[19] have also approved al-Shaykh al-Tusi and al-Najashi’s statements[20].
Interestingly, apart from the Shia scholars, some Sunni scholars have mentioned the merits and virtues of Shaykh al-Kulayni. For instance, Ibn Athir, the Sunni historian counted Shaykh al-Kulayni among the great Twelver Shia scholars[21]. Likewise, Al-Dhahabi mentioned Shaykh al-Kulayni as a Shia shaykh and Twlever Shia scholar who had several written works[22]. Ibn Hajar al-‘Asqalani and Ibn Makula say: “He [Shaykh al-Kulayni] is among Shia jurists and authors.”[23] Ibn ‘Asakir in his book Tārīkh Madīna Dimashq has described Shaykh al-Kulayni as having great merits[24].
Teachers of Shaykh al-Kulayni
According to reliable historical reports, nearly 50 scholars and teachers have been identified who instructed al-Kulayni, contributed to his education, and transmitted hadiths to him.
His most influential teacher was Ali ibn Ibrahim al-Qummi, author of Tafsir Qummi who has been mentioned in the chain of transmitters of more than 7068 hadiths in al-Kafi[25].
His other famous teachers are: Muhammad ibn Yahya al-Ash’ari, Ahmad ibn Idris al-Qummi, Ahmad ibn ‘Abd Allah ibn Ahmad ibn Muhammad ibn Khalid al-Barqi, Ahmad ibn Muhammad ibn ‘Isa al-Ash’ari, ‘Abd Allah ibn Jafar al-Himyari, Hasan ibn Fadl ibn Yazid al-Yamani, Ahmad ibn Mahran, Muhammad ibn Hasan al-Ta’I, ‘Ali ibn al-Husayn ibn Musa ibn Babawayh al-Qummi, Muhammad ibn al-Hasan al-Saffar, Muhammad ibn Yahya al-‘Attar, Qasim ibn ‘Ala, Ibn ‘Uqda.
His Students and Transmitters of Hadiths
Shaykh al-Kulayni had numerous students who studied under him, learning various disciplines including hadith, fiqh (jurisprudence), theology, and more. Some of his notable students were prominent scholars and transmitters of hadiths. Other students of Shaykh al-Kulayni likely contributed to the dissemination of his teachings and the preservation of his works.
Meanwhile, the followings are names of some great Shia scholars, who are among his students and those who transmitted hadiths from him: Ibn Abi Rafi’ al-Saymari, Ibn Qulawayh al-Qummi, Harun ibn Musa ibn Ahmad al-Talla’ukbari, Ahmad ibn Muhammad al-Zurari, Muhammad ibn ‘Ali Majilawayh al-Qummi, Abu ‘Abd Allah Muhammad ibn Ibrahim ibn Ja’far, Abu ‘Abd Allah Muhammad ibn Ahmad ibn Quda’a al-Safwani.
His Works
Shaykh al-Kulayni is accredited with several works during this period. In addition to al-Kafi, he had some other important works[26] such as Kitab al-Rijal, (a book in which men are assessed as authorities for traditions), al-Radd ‘ala ‘l-Qaramita (Refutation of the Carmatians), Rasa’ il al-A’immah (Letters of the Imams) and an anthology of poetry about the Imams. It is pertinent to mention that only al-Kafi appears to have survived.
His Demise and Burial Place
Shaykh al-Kulayni passed away in Baghdad, at the age of 70 in Sha’ban 329/May 941 (year of “Tanathur al-Nujum”), the first year of the age of the Major Occultation of Imam al-Mahdi (PBUH)[27]. His body was buried in Bab Kufa, Iraq.
Legacy of Shaykh al-Kulayni
Shaykh al-Kulayni’s legacy is deeply rooted in his monumental contribution to Shia Islamic scholarship, most notably through his compilation of al-Kāfī, one of the four principal collections of Shia hadith. This work has served as a foundational reference in the fields of theology (ʿaqīdah), jurisprudence (fiqh), and ethics for centuries. Renowned for his meticulous methodology and reliable transmission, he earned the honorific title Thiqah al-Islām (The Trusted Authority of Islam), reflecting the high regard in which he was held by both his contemporaries and later scholars. His efforts not only preserved the teachings of the Imams but also shaped the intellectual framework of Twelver Shi’ism, making his influence enduring and essential to Islamic studies.
Conclusion
Muhammad ibn Ya’qub al-Kulayni popularly known as Shaykh al-Kulayni was a renowned scholar and prominent Shia hadith narrator, who lived during the 9th and 10th centuries. He has made significant contributions to Islamic scholarship, particularly in the field of hadith. His compilation of hadiths in “Al-Kafi” remains one of the most authoritative sources for Shia Muslims.
Notes
[1] . Qummī, Shaykh ʿAbbās al-Safīnat al-bīḥār, vol. 2, p. 495.
[2] . Khwansārī, Muḥammad Bāqir, Al-Rawḍāt al-jannāt fī aḥwāl al-ʿulamāʾ wa l-sādāt, vol. 6, p. 108.
[3] . Ali Akbar al-Ghaffari’s introduction to his eight-volume edition of al-Kulayni’s Usul al-Kafi, Tehran, 3rd edition 1388), I, 9–13.
[4] . Baḥr al-ʿulūm, Sayyid Muḥammad Mahdī, Al-Fawāʾid al-rijālīyya. vol. 3, p. 336.
[5] . Khoei, Abū l-Qāsim, al-Muʿjam rijāl al-ḥadīth, vol. 19, p. 58.
[6] . Ghaffār, ʿAbd Allāh al-Rasūl, al-Kulaynī wa l-Kāfī, p. 124-125.
[7] . Ibid, p. 264-267.
[8] . Mudarris, Muḥammad ʿAlī, al-Rayḥānat al-adab, vol. 5, p. 79.
[9] . Syed Waheed Akhtar, Early Imammiyah Shiite Thinkers
[10] . Ghaffār, ʿAbd Allāh al-Rasūl, al-Kulaynī wa l-Kāfī, p. 264-267.
[11] . Ṭusī, Muḥammad ibn al-Ḥasan al-Rijāl, p. 429.
[12] . Ibid, p. 120.
[13] . Najāshī, Aḥmad ibn ʿAlī, al-Rijāl al-Najāshī, p. 377.
[14] . Ibn Shahrāshūb, Muḥammad ʿAlī, Maʿālim al-ʿulamā, p. 134.
[15] . Ḥillī, Ḥasan b. Yūsuf, al-Khulāṣat al-aqwāl fī maʿrifat al-rijāl, p. 245.
[16] . Hīllī, Ibn Dāwūd Ḥasan ibn ʿAlī, al-Rijāl Ibn Dāwūd, p. 187.
[17] . Tafrishī, Muḥammad ibn al-Husayn, al-Naqd al-Rijāl, vol. 4, p. 352.
[18] . Ardabīlī, Muḥammad ʿAlī, Jāmiʿ al-ruwāt, vol. 2, p. 218.
[19] . Khoei, Abū l-Qāsim, al-Muʿjam rijāl al-ḥadīth, vol. 19, p. 54.
[20] . Ibn Ṭāwūs, ʿAlī b. Mūsā, Kashf al-maḥajja, p. 159.
[21] . Ibn Athīr, al-Jazarī, ʿAlī ibn Muḥammad, al-Kāmil fī tārīkh, vol. 8, p. 364.
[22] . Dhahabī, Muḥammad ibn Aḥmad, al-Siyar iʿlām al-nubalāʾ, vol. 15, p. 280.
[23] . Ibn Ḥajar al-ʿAsqalānī, Aḥmad ibn ʿAlī, Lisān al-mīzān, vol. 5, p. 433; Ibn Mākula, ʿAlī b. Hibat Allāh, Ikmāl al-kamāl, vol. 7, p. 186.
[24] . Ibn ʿAsākir, ʿAlī ibn al-Ḥasan, Tārīkh Madīna Dimashq, vol. 56, p. 297.
[25] . Khoei, Abū l-Qāsim, al-Muʿjam rijāl al-ḥadīth, vol. 19, p. 59.
[26] . Ṭūsī, Muḥammad ibn al-Ḥasan al-Rijāl, p. 429; Najāshī, Aḥmad ibn ʿAlī, al-Rijāl al-Najāshī, p. 377
[27] . Mudarris, Muḥammad ʿAlī al-Rayḥānat al-adab, vol. 8, p. 80.
References
- Ali Akbar al-Ghaffari’s introduction to his eight-volume edition of al-Kulayni’s Usul al-Kafi, Tehran, 3rd edition 1388), I, 9–13.
- Ardabīlī, Muḥammad ʿAlī. Jāmiʿ al-ruwāt. [n.p]: Maktabat al-Muḥammadī, [n.d].
- Baḥr al-ʿulūm, Sayyid Muḥammad Mahdī al-. Al-Fawāʾid al-rijālīyya. Edited by Muḥammad Ṣādiq Baḥr al-ʿulūm. Tehran: Maktabat al-Ṣādiq, 1363 Sh.
- Dhahabī, Muḥammad b. Aḥmad al-. Siyar iʿlām al-nubalāʾ. Beirut: Muʾassisat al-Risāla, 1413 AH.
- Ghaffār, ʿAbd Allāh al-Rasūl. Al-Kulaynī wa l-Kāfī. Qom: Muʾassisat al-Nashr al-Islāmī, 1416 AH.
- Ḥillī, Ḥasan b. Yūsuf al-. Khulāṣat al-aqwāl fī maʿrifat al-rijāl. Edited by Jawād al-Qayyūmī. [n.p]: Nasht al-Fiqāha, 1417 AH.
- Hīllī, Ibn Dāwūd Ḥasan b. ʿAlī al-. Rijāl Ibn Dāwūd. Najaf: al-Maṭbaʿa al-Ḥaydarīyya, 1392 AH.
- Ibn ʿAsākir, ʿAlī b. al-Ḥasan. Tārīkh Madīna Dimashq. Beirut: Dār al-Fikr, 1415 AH.
- Ibn Athīr al-Jazarī, ʿAlī b. Muḥammad. Al-Kāmil fī tārīkh. Beirut: Dār al-Ṣādir, 1386 AH.
- Ibn Ḥajar al-ʿAsqalānī, Aḥmad b. ʿAlī. Lisān al-mīzān. Beirut: Muʾassisat al-Aʿlamī, 1390 Sh.
- Ibn Shahrāshūb, Muḥammad ʿAlī. Maʿālim al-ʿulamā. Qom: [n.p], [n.d].
- Ibn Ṭāwūs, ʿAlī b. Mūsā. Kashf al-maḥajja. Najaf: al-Maṭbaʿa al-Ḥaydarīyya, 1370 AH.
- Islāmī, 1416 AH.
- Khoei, Abū l-Qāsim al-. Muʿjam rijāl al-ḥadīth. [n.p]: [n.p], 1413 AH.
- Khwansārī, Muḥammad Bāqir al-. Rawḍāt al-jannāt fī aḥwāl al-ʿulamāʾ wa l-sādāt. Qom: Ismāʿīlīyān, [n.d].
- Mudarris, Muḥammad ʿAlī al-. Rayḥānat al-adab. Tehran: Khayyām, 1369 Sh.
- Najāshī, Aḥmad b. ʿAlī al-. Rijāl al-Najāshī. Qom: Muʾassisat al-Nashr al-
- Qummī, Shaykh ʿAbbās al-. Safīnat al-bīḥār. Qom: Uswa, [n.d].
- Syed Waheed Akhtar: Early Imammiyah Shiite Thinkers
- Tafrishī, Muḥammad b. al-Husayn al-. Naqd al-Rijāl. Qom: Āl al-Bayt, 1418 AH.
- Ṭūsī, Muḥammadd b. al-Ḥasan al-. Rijāl. Edited by Jawād al-Qayyūmī. Qom: Muʾassisat al-Nashr al-Islāmī, 1415 AH.
NOTE: The major part of the article was adapted from an article titled Muhammad b. Ya’qub al-Kulayni in https://en.wikishia.net