Matsya Purana — Genealogy of Kaśyapa: Ādityas
तेषामनन्तमभवत् पक्षिणां पुत्रपौत्रकम् सुरसायाः सहस्रं तु सर्पाणाम् अभवत्पुरा //
teṣāmanantamabhavat pakṣiṇāṃ putrapautrakam surasāyāḥ sahasraṃ tu sarpāṇām abhavatpurā //
From them there arose an endless lineage of birds—sons and grandsons without limit; and from Surasā, in former times, a thousand serpents came into being.
It focuses on creation through lineage—describing the proliferation of birds and the thousand serpents born from Surasā—rather than any pralaya (dissolution) event.
Indirectly, it supports the Purāṇic emphasis on lineage and continuity; for kings and householders, this underlines the importance of preserving family lines, social order, and responsible progeny within dharma.
No direct Vastu Shastra or ritual procedure is stated; the verse is primarily genealogical, useful for contextualizing later ritual/temple traditions involving nāgas and birds (e.g., serpent veneration) in Purāṇic culture.