Matsya Purana — Catalogue of the Eighteen Puranas
अधिकृत्याब्रवीत्सप्तकल्पवृत्तं मुनीश्वराः तन्मात्स्यमिति जानीध्वं सहस्राणि चतुर्दश //
adhikṛtyābravītsaptakalpavṛttaṃ munīśvarāḥ tanmātsyamiti jānīdhvaṃ sahasrāṇi caturdaśa //
O foremost sages, having undertaken the narration of the course of the seven kalpas, he declared: “Know this as the Matsya (Purāṇa); it comprises fourteen thousand verses.”
It frames the text as a chronicle of cosmic cycles (“seven kalpas”), implying repeated creation–dissolution rhythms, though it does not detail a specific pralaya event in this verse.
Indirectly: by identifying the Purāṇa’s scope and authority, it positions the Matsya Purāṇa as a source text from which kings and householders later derive dharma-guidance, but this verse itself is bibliographic rather than prescriptive.
None explicitly; the verse is about the Matsya Purāṇa’s subject-matter (kalpa accounts) and its extent (14,000 verses), not about Vāstu or ritual procedure.