What is the evidentiary limit of a narrator’s absence from Mālik’s books?

The Necessity and Boundaries of Narrator Criticism

• It indicates his personal selection, not an absolute universal disqualification
• It shows exclusion of particular written reports but offers no clue to Mālik’s judgment of the person
• It only shows absence from his own teachers and has no bearing on trustworthiness
• It necessarily proves Mālik never knew of the transmitter