Matsya Purana — Kārtavīrya Arjuna’s Solar Boon and the Genealogy from Kroṣṭu to the Yādava Lines
तस्यासीत्तनुजः सर्पो विद्वान्पुत्रो नलः किल ख्यायते तस्य नाम्ना स नन्दनो दरदुन्दुभिः //
tasyāsīttanujaḥ sarpo vidvānputro nalaḥ kila khyāyate tasya nāmnā sa nandano daradundubhiḥ //
From him was born a son named Sarpa; and (another) son, the learned Nala, is indeed celebrated. By Nala’s name that descendant became renowned as Nandana Daradundubhi.
Nothing directly—this verse is genealogical, preserving lineage memory rather than describing pralaya (cosmic dissolution) or creation.
Indirectly, it reflects the Purana’s emphasis on lineage, reputation, and learned heirs (vidvān), implying that wisdom and worthy progeny sustain a family’s fame and social order.
No explicit Vastu or ritual rule appears here; the focus is on names and descent within a dynastic catalogue.