In attributional kināyah the subject may be named, as with Ibn al-Ḥashraj, or represented by a pronoun or by something linked to them, such as clothing or a house.
The rule does not require the subject’s name to be omitted. It requires that the attribution be conveyed through a related sign rather than direct predication.
Proper names, pronouns, or contextual references do not change the category so long as the attribution remains the target.