Matsya Purana — Marks of Karma-yoga and the Five Great Daily Sacrifices
इति क्रियायोगपरायणस्य वेदान्तशास्त्रस्मृतिवत्सलस्य विकर्मभीतस्य सदा न किंचित् प्राप्तव्यमस्तीह परे च लोके //
iti kriyāyogaparāyaṇasya vedāntaśāstrasmṛtivatsalasya vikarmabhītasya sadā na kiṃcit prāptavyamastīha pare ca loke //
Thus, for one devoted to kriyā-yoga—who cherishes Vedānta, the śāstras, and the Smṛtis, and who is ever afraid of wrongful action (vikarma)—there remains nothing further that must be attained, either in this world or in the next.
This verse does not discuss pralaya directly; it teaches liberation-oriented ethics—saying that one established in kriyā-yoga and faithful to Vedānta and Smṛti has nothing further to attain in this world or the next.
It frames ideal governance/householder life as disciplined action guided by śāstra and Smṛti, with vigilant avoidance of vikarma (forbidden acts). Such dharmic conduct is presented as spiritually complete, yielding the highest good beyond mere worldly results.
While not about Vāstu rules specifically, it supports the ritual principle that correct, śāstra-aligned performance of prescribed acts (kriyā) and avoidance of prohibited acts is itself a complete path, underpinning all temple/ritual activity with ethical purity.