«أن تأتي بأسماء الممدوح أو غيره وأسماء آبائه على ترتيب الولادة»
To mention a person’s name and the names of their forebears in genealogical order.
A further requirement is «من غير تكلف في السبك»—without strained construction. A long list of ancestors is not automatically an ornament merely because it is long.
The figure depends on appropriate sequencing, correct genealogical direction, and ease of expression, so that the names fit naturally into the rhetorical composition.