Matsya Purana — Genealogy of Kaśyapa: Ādityas
एषामनन्तमभवत् सर्वेषां पुत्रपौत्रकम् प्रायशो यत्पुरा दग्धं जनमेजयमन्दिरे //
eṣāmanantamabhavat sarveṣāṃ putrapautrakam prāyaśo yatpurā dagdhaṃ janamejayamandire //
For these royal lineages, the succession of sons and grandsons became, as it were, unending—though much of it was formerly burned (lost) in King Janamejaya’s palace.
This verse is not about Pralaya; it highlights continuity of dynastic descent and notes that earlier records were largely destroyed by a fire in Janamejaya’s residence.
It implicitly values preservation of lineage and records: a king/householder is expected to safeguard archives, genealogies, and traditions that legitimize succession and sustain dharma through memory and documentation.
The only implied point is practical: palaces/mandiras (royal residences) housed records, and fire could destroy them—an indirect reminder for secure storage and protective measures rather than a specific Vastu rule.