Matsya Purana — Paurava Genealogy: Bharata
अमूर्तरयसं वीरं त्रिवनं चैव धार्मिकम् गौरी कन्या तृतीया च मान्धातुर्जननी शुभा //
amūrtarayasaṃ vīraṃ trivanaṃ caiva dhārmikam gaurī kanyā tṛtīyā ca māndhāturjananī śubhā //
And (she gave birth to) the heroic Amūrtarayas, and also Trivana, a righteous man. Gaurī was the third daughter—an auspicious lady, the mother of Māndhātṛ.
This verse does not discuss Pralaya; it belongs to a genealogical passage listing descendants and their virtues, especially the dharmic character of Trivana and the lineage of Māndhātṛ.
By highlighting Trivana as “dhārmika” and presenting Māndhātṛ’s maternal lineage, the verse reinforces the Purāṇic ideal that royal legitimacy and fame are tied to dharma, righteous conduct, and auspicious family lines.
No Vāstu/temple-building or ritual procedure is stated here; the verse is focused on dynastic genealogy and the identification of notable persons in the royal line.