Matsya Purana — Measures of Time: Caturyuga Computation
आरम्भयज्ञः क्षत्रस्य हविर्यज्ञा विशः स्मृताः परिचारयज्ञाः शूद्राश्च जपयज्ञाश्च ब्राह्मणाः //
ārambhayajñaḥ kṣatrasya haviryajñā viśaḥ smṛtāḥ paricārayajñāḥ śūdrāśca japayajñāśca brāhmaṇāḥ //
For the Kṣatriya, the sacrifice called Ārambha-yajña is prescribed; for the Vaiśya, the Havis-yajñas are declared. For the Śūdra, sacrifices consisting in service (paricaryā) are enjoined; and for the Brāhmaṇa, sacrifices consisting in japa (sacred recitation) are prescribed.
This verse is not about pralaya; it outlines dharma through varṇa-appropriate forms of yajña, emphasizing social order and righteous conduct rather than cosmic dissolution.
It assigns the Kṣatriya an ‘ārambha’ form of yajña—yajña expressed through decisive, disciplined undertaking of rightful responsibilities—supporting the idea that kingship and governance can be sacrificial when aligned with dharma.
Ritually, it classifies yajña by eligibility and mode: havis-offerings for Vaiśyas, service as yajña for Śūdras, and japa as yajña for Brāhmaṇas—showing that ritual merit is accessible through different sanctioned practices, not only fire-offerings.