Matsya Purana — The Greatness of Prayaga and the Supremacy of Cow-Donation
यत्रासौ लभते जन्म सा गौस्तस्याभिजायते न च पश्यति तं घोरं नरकं तेन कर्मणा उत्तरान्स कुरून्प्राप्य मोदते कालमक्षयम् //
yatrāsau labhate janma sā gaustasyābhijāyate na ca paśyati taṃ ghoraṃ narakaṃ tena karmaṇā uttarānsa kurūnprāpya modate kālamakṣayam //
Wherever he attains a new birth, that very cow is born there as belonging to him; and by that deed he does not behold the dreadful hell. Reaching the Northern Kurus, he rejoices for imperishable time.
This verse is not about pralaya; it teaches karma-phala: a meritorious act connected with the cow leads to freedom from hell and enjoyment in the Uttara-Kuru realm.
It supports the householder/kingly duty of go-dāna and go-rakṣaṇa (donating and protecting cows), presenting them as high-merit actions that secure auspicious rebirth and avert naraka.
No Vāstu or temple-architecture rule appears here; the ritual takeaway is the फलश्रुति of go-dāna—its spiritual “result” is stated as non-encounter with hell and attainment of a blissful realm.