Matsya Purana — Paurava Genealogy: Bharata
येषां तु चरितं गृह्य हन्यते नापमृत्युभिः इह लोके परे चैव सुखमक्षय्यमश्नुते //
yeṣāṃ tu caritaṃ gṛhya hanyate nāpamṛtyubhiḥ iha loke pare caiva sukhamakṣayyamaśnute //
But those who truly take up and follow this sacred conduct and narrative are not struck down by untimely deaths; in this world and in the next as well, they attain imperishable happiness.
This verse does not describe pralaya directly; it gives a phala-śruti promise that adopting the sacred carita protects one from apamṛtyu and yields lasting happiness across worlds.
It frames dharma in practical terms: a king or householder who ‘takes up’ the prescribed conduct—learning, internalizing, and living by it—gains welfare here (well-being and protection) and hereafter (enduring spiritual reward).
No specific Vāstu/temple rule is stated; the verse functions as a general assurance of merit for sincerely adopting the teaching, which can include ritual discipline taught elsewhere in the Matsya Purana.