Matsya Purana — The Maheshvara Vow: Śiva-Caturdaśī Vrata
भवत्यमरवल्लभः पठति यः स्मरेद्वा सदा शृणोत्यपि विमत्सरः सकलपापनिर्मोचनीम् इमां शिवचतुर्दशीममरकामिनीकोटयः स्तुवन्ति तमनिन्दितं किमु समाचरेद्यः सदा //
bhavatyamaravallabhaḥ paṭhati yaḥ smaredvā sadā śṛṇotyapi vimatsaraḥ sakalapāpanirmocanīm imāṃ śivacaturdaśīmamarakāminīkoṭayaḥ stuvanti tamaninditaṃ kimu samācaredyaḥ sadā //
O beloved of the gods, whoever—free from envy—recites, remembers, or even continually hears this Śiva-caturdaśī, the remover of all sins, becomes worthy of praise; millions of celestial maidens extol that blameless person—how much more, then, one who always practices it in full?
This verse is not about Pralaya; it teaches the sin-destroying merit of Śiva-caturdaśī through recitation, remembrance, and hearing.
It frames a practical dharma for householders and rulers alike: cultivate non-envy (vimatsaratā) and gain spiritual merit through śravaṇa/smaraṇa/pāṭha and regular vrata-observance.
The ritual emphasis is on Śiva-caturdaśī (Śivarātri-related vrata) and the graded efficacy of practice—hearing, remembering, reciting, and fully observing—rather than any Vāstu or temple-building rule.