A technical question arises: if the mere return of a pronoun to the outer subject creates strengthening, what about «Zayd ḍarabtuhu»? That clause is linked to Zayd, although the inner verb's agent is the speaker.
The answer depends on distinguishing the subject about whom the whole report is given from the grammatical roles inside the predicate clause. A general linking pronoun should not be confused with the specific configuration used to explain prominent taqawwī.
The analysis therefore follows the actual layers of attribution instead of mechanically assigning one label to every clause.