Bidʿah in this classification includes a doctrinal position contrary to recognized prophetic teaching that a transmitter adopts through a mistaken interpretation rather than knowing, deliberate defiance. Such a belief can raise careful questions about the narrator and the particular transmission.
Care is essential. A legal disagreement, unusual expression, or affiliation with a different scholarly group is not automatically evidence of fabrication. Nor can every innovating narrator be given a single blanket ruling; sincerity, truthfulness, advocacy, and the relevant report require further analysis.
The real inquiry concerns whether the conditions of probity and trustworthy transmission are met, not whether the evaluator personally agrees with the transmitter.