Matsya Purana — The Syamantaka Jewel Episode and the Vrishni–Sainya Genealogies
द्युम्नेर्युगंधरः पुत्र इति शैन्याः प्रकीर्तिताः अनमित्रान्वयो ह्य् एष व्याख्यातो वृष्णिवंशजः //
dyumneryugaṃdharaḥ putra iti śainyāḥ prakīrtitāḥ anamitrānvayo hy eṣa vyākhyāto vṛṣṇivaṃśajaḥ //
The Śainyas are proclaimed thus: “Yugaṃdhara is the son of Dyumna.” In this way the lineage of Anamitra—born in the Vṛṣṇi dynasty—has been set forth.
Nothing directly—this verse is genealogical, focusing on the Vṛṣṇi line (Śainyas) rather than cosmology or Pralaya.
Indirectly, it supports Purāṇic dharma by preserving lineage memory—useful for royal legitimacy, succession, and the traditional emphasis on ancestry (vaṃśa) in social and political order.
No Vāstu or ritual procedure is stated here; the verse is a concise identification within a dynastic catalogue.