Matsya Purana — The Greatness of the Vibhūti-Dvādaśī Vow: Pushkara
विनष्टाशेषपापस्य तव पुष्करमन्दिरम् तस्य सत्त्वस्य माहात्म्याद् अल्पेन तपसा नृप //
vinaṣṭāśeṣapāpasya tava puṣkaramandiram tasya sattvasya māhātmyād alpena tapasā nṛpa //
O King, by the greatness of that sacred presence, your Puṣkara shrine becomes the means by which all sins are utterly destroyed—even through only a little austerity (tapas).
This verse does not describe Pralaya; it teaches the purificatory power (māhātmya) of a tirtha/temple—sins are said to be destroyed through even minor tapas when connected to a highly sanctified sacred site.
It frames a king’s (and householder’s) dharma as supporting and approaching sacred institutions—undertaking disciplined tapas and temple/tirtha worship—so that personal and societal purity (removal of pāpa) is strengthened through righteous practice.
The emphasis is ritual rather than technical architecture: a ‘Puṣkara-mandira’ (shrine/temple at Pushkara) is presented as a powerful locus where even limited austerity and devotional observance yields major purificatory results.