Matsya Purana — Catalogue of the Eighteen Puranas
प्रतिलिख्य च यो दद्यात् सौवर्णकरिसंयुतम् कार्त्तिक्यां पुण्डरीकस्य यज्ञस्य फलभाग्भवेत् //
pratilikhya ca yo dadyāt sauvarṇakarisaṃyutam kārttikyāṃ puṇḍarīkasya yajñasya phalabhāgbhavet //
Whoever, after having it copied, donates it together with a golden image of an elephant—especially in the month of Kārttika—becomes a sharer in the merit, the fruit, of the Puṇḍarīka sacrifice (yajña).
It does not discuss Pralaya; it teaches how charitable gifting—especially in Kārttika—can yield merit comparable to major Vedic sacrifices.
It frames a householder/royal duty of dāna: sponsoring copying (preservation/transmission) and donating valuable ritual objects, thereby accruing yajña-like merit without performing an elaborate sacrifice.
Ritually, it links Kārttika-time donation of a copied item (likely a sacred text) plus a golden elephant offering to the merit of the Puṇḍarīka-yajña—highlighting donation as a substitute pathway to high sacrificial fruit.