Why preserve ʿAbd al-Quddūs’s erroneous attributed wording?

Narrator Criticism: Corruption, Concealed Sources and Chronological Testing

• It supplies an independent list of authentic transmission routes
• To expose the corruption and its effect
• The quotation establishes a new authoritative Prophetic narration
• It conclusively settles all other reports of ʿAbd al-Quddūs