Matsya Purana — The Origin of Yajña in Tretā Yuga and the Debate on Animal Sacrifice vs. Non-...
राजर्षयो महात्मानो येषां कीर्तिः प्रतिष्ठिता तस्माद्विशिष्यते यज्ञात् तपः सर्वैस्तु कारणैः //
rājarṣayo mahātmāno yeṣāṃ kīrtiḥ pratiṣṭhitā tasmādviśiṣyate yajñāt tapaḥ sarvaistu kāraṇaiḥ //
Those royal sages—great-souled men—whose fame stands firmly established: therefore, for every reason, austerity (tapas) is held to excel even sacrifice (yajña).
This verse does not address pralaya directly; it focuses on moral causality—how enduring merit and renown arise, emphasizing tapas as a higher spiritual cause than ritual sacrifice.
It praises the ideal of the rājarṣi: a king who governs while practicing self-restraint and disciplined austerity. For householders too, it implies that inner discipline and ethical restraint can surpass external ritual performance in producing lasting virtue and reputation.
Ritually, it ranks tapas above yajña, suggesting that spiritual discipline can be a stronger source of religious merit than elaborate sacrifices; it contains no specific Vastu or temple-building rule.