A sobriquet and a personal name may identify one transmitter, not two independent authorities. Recognizing “Ghundar” as Muhammad ibn Jaʿfar prevents a false multiplication of narrators. The link from Ribʿī to ʿAlī is explicit hearing; other links must be read according to their transmission formulae and established narrator histories.
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Why the identification of a narrator matters
The Grave Warning Against Lying About the Prophet: Narration, Intent and Critical Duty
A sobriquet and a personal name may identify one transmitter, not two independent authorities. Recognizing “Ghundar” as Muhammad ibn Jaʿfar prevents a false multiplication of narrators. The link from Ribʿī to ʿAlī is explicit hearing; other links must be read according to their transmission formulae and established narrator histories.