Matsya Purana — Yadu Lineage
ततस्तानब्रवीत्काव्यः कंचित्कालमुपास्यथ निरुत्सिक्तास् तपोयुक्ताः कालं कार्यार्थसाधकम् //
tatastānabravītkāvyaḥ kaṃcitkālamupāsyatha nirutsiktās tapoyuktāḥ kālaṃ kāryārthasādhakam //
Then Kāvya addressed them: “For some time, remain in devoted attendance—free from arrogance, endowed with austerity—until the right time arrives, the time that accomplishes the intended purpose.”
This verse does not directly describe pralaya; it stresses a general Purāṇic principle: success depends on disciplined tapas and waiting for the proper kāla (right time), a theme often applied even to cosmic events.
It advises restraint and humility—serving, practicing self-discipline, and acting at the right time—key virtues for rulers and householders in the Matsya Purana’s dharma framework, where impatience and pride undermine effective action.
No direct Vāstu or iconographic rule is stated, but the ritual principle is clear: rites and undertakings succeed when performed with tapas, humility, and correct timing (kāla), which is foundational to Purāṇic ritual procedure.