Matsya Purana — Genealogy from Budha to Purūravas and Yayāti; Raji’s war episode; the Paurava...
अजीजनत्सुतानष्टौ नामतस्तान्निबोधत आयुर् दृढायुर् अश्वायुर् धनायुर् धृतिमान्वसुः //
ajījanatsutānaṣṭau nāmatastānnibodhata āyur dṛḍhāyur aśvāyur dhanāyur dhṛtimānvasuḥ //
He begot eight sons—learn their names: Āyu, Dṛḍhāyu, Aśvāyu, Dhanāyu, Dhṛtimān, and Vasu (the remaining two are implied in the fuller genealogical list).
Nothing directly—this verse is a genealogical notice listing sons by name, part of the Matsya Purana’s lineage (vamsha) material rather than Pralaya narration.
Indirectly: by preserving dynastic memory and rightful succession, such lists support the Purana’s broader concern with legitimate kingship, inheritance, and continuity of dharma through family lines.
None explicitly—this is not a Vastu/temple-rule passage; it functions as a naming-and-lineage record within the dynastic section.