Matsya Purana — Measures of Time: Caturyuga Computation
दाराग्निहोत्रसम्बन्धम् ऋग्यजुःसामसंहिताः इत्यादिबहुलं श्रौतं धर्मं सप्तर्षयो ऽब्रुवन् //
dārāgnihotrasambandham ṛgyajuḥsāmasaṃhitāḥ ityādibahulaṃ śrautaṃ dharmaṃ saptarṣayo 'bruvan //
The Seven Sages declared the Śrauta form of dharma—abundant in injunctions—connected with the wife and the Agnihotra, and grounded in the Saṁhitās of the Ṛg, Yajus, and Sāman (and the rest of the Vedic corpus).
This verse does not address pralaya directly; it focuses on Śrauta dharma—Vedic ritual duty—especially the Agnihotra and its scriptural basis in the Vedas.
It primarily concerns the gṛhastha (householder): Agnihotra is a daily Vedic fire rite traditionally tied to the married state (dārā-sambandha). For kings, it underscores upholding Vedic orthopraxy and supporting Śrauta rites in society.
The ritual significance is central: Agnihotra and Śrauta dharma are presented as Veda-rooted, rule-rich practices taught by the Saptarṣis; no Vāstu or temple-architecture rule is specified in this verse.