Abu Ja'far Ahmed ibn Muhammad ibn Abi Nasr, known as Bazanti,^[1] is one of the companions of Musa al-Kazim, Ali al-Rida, and Muhammad al-Jawad, and was an active Shia muhaddith and jurist. He belonged to the Walāʾ al-sakuna tribe, one of the major branches of the Kinda tribe in Yemen. Sometimes Bazanti is mention as "Ibn Abi Nasr". He died in 221.^{[which calendar?]} He was mentioned as one of the six important jurists from the Companions of al-Kazim and ali al-Riza.^[2]

In the list of his narrators, the names of personalities such as Ali ibn Ibrahim al-Qummi, Hossein Ibn Saeed Ahwazi, Ahmad ibn Muhammad ibn Khalid al-Barqi, al-Hassan Ibn Mahbub and Ali ibn Mahziar Ahvazi can be seen. Among his students, Muhammad ibn Isa ibn Obaid Yaqtini should also be mentioned, who, according to his own words, learned from him in 10 AH/25 AD.^[3][4]

Among his works, the ones with jurisprudential importance are:

• Al-Jami' : In the lists of Bazanti's works, Al-Jami' is at the top and this writing, as it is based on the knowledge of the society of that era, contains a wide collection of news in various fields of religious epistemology.Copies of this work have survived until the 19th century, so that one can find excerpts and quotations from it in various works of those centuries by ibn Idris al-Hilli.
• Al-Masa'il : Ibn Nadim mentioned this work in his list, and its title is recorded in Ahmad ibn Muhammad al-Zurari message. It should be mentioned that there was also a version containing a collection of jurisprudential hadiths in the form of questions and answers between Bazanti and Ali al-Rida, narrated by Abd Allah ibn ja'far al-Himyari, which may be the same as Kitab al-Masal. This version has survived as a part of Hamiri'sAsnaad, and it is included in the section related to Ali al-Rida of this book, Hamiri, 51–73.
• Al-Nawadir: In his list, Sheikh Tusi mentioned a work by Bazanti with this title, and introduced Yahya ibn Zakaria ibn shiban as its narrator. Also, in the list of Bazanti works, Najashi mentioned two different books with the title Nawadar, the first of which was according to Yahya Bin zakaria, Sheikh Tusi, Al-Furst, also Najashi, ibid. There were copies of this work until the 10th century, and Ibn Idris recorded excerpts of its narrations in Mustarafat-Saraer, pp. 72–75.

It should be said that a copy or copies of Bazanti jurisprudential-narrative works were in Ibn Babawiyah's possession.^[5]