Husayn ibn Ali Zayn al-Abidin

Husayn ibn Ali Zayn al-Abidin was a son of Imam Ali Zayn al-Abidin and a grandson of Imam Husayn. He belonged to the Husayni branch of the Ahl al-Bayt. His paternal relationship is clear, while the personal name of his mother is not preserved in the foundational genealogical list.

Shaykh al-Mufid's Kitab al-Irshad lists one son named Husayn and a separate son named Husayn al-Asghar. The first Husayn appears with Abd Allah and Hasan as children of one unnamed umm walad, whereas Husayn al-Asghar appears with Abd al-Rahman and Sulayman as children of another unnamed umm walad. This direct distinction makes it unsafe to merge the two men into one profile.

Some later genealogical sources use Husayn al-Akbar to distinguish the first son from Husayn al-Asghar, but that descriptor is not uniform across the earliest child lists. It is therefore retained only as a reported alternative name, while the primary identity follows the documented genealogy record: Husayn ibn Ali Zayn al-Abidin.

The kunya Abu Abd Allah, transmitter evaluations, death-year variants, and al-Baqi burial reports that belong to Husayn al-Asghar have not been attached to this profile. For the present Husayn, no secure independent account establishes an exact birth year, death year, descendants, scholarly office, or burial place. This controlled limitation removes the risk of assigning a correct biography to the wrong namesake.