Matsya Purana — Genealogy from Budha to Purūravas and Yayāti; Raji’s war episode; the Paurava...
यतिर्ययातिः संयातिर् उद्भवः पाचिरेव च शर्यातिर्मेघजातिश्च सप्तैते वंशवर्धनाः //
yatiryayātiḥ saṃyātir udbhavaḥ pācireva ca śaryātirmeghajātiśca saptaite vaṃśavardhanāḥ //
Yati, Yayāti, Saṃyāti, Udbhava, and Pāci; and also Śaryāti and Meghajāti—these seven are the increasers and sustainers of the royal lineage.
This verse does not describe Pralaya; it is a genealogical enumeration highlighting dynastic continuity through seven named lineage-expanders.
Indirectly, it frames kingship as stewardship of continuity—‘vaṃśa-vardhana’ implies preserving and strengthening the dynasty through righteous rule and succession.
No Vastu, temple, or ritual procedure is stated here; the verse functions as a lineage record rather than a technical prescription.