“Kadhdhāb” is the severe criticism attributed to al-Shaʿbī; “aḥad al-kādhibīn” is a related wording in another route; “uttuhima” records an allegation. They should not be flattened into one evidentiary claim.
In narrator evaluation, one must preserve who criticised, the exact term, the evidence supporting it, and the chain conveying it. Reporting a severe criticism and independently verifying every allegation remain distinct tasks.