Matsya Purana — Intermediate Dissolution
काले यथोक्ते संजाते वासुदेवमुखोद्गते शृङ्गी प्रादुर्बभूवाथ मत्स्यरूपी जनार्दनः //
kāle yathokte saṃjāte vāsudevamukhodgate śṛṅgī prādurbabhūvātha matsyarūpī janārdanaḥ //
When the previously foretold time arrived—just as it had been spoken from Vāsudeva’s own mouth—Janārdana then manifested, taking the form of a fish and bearing a horn.
It signals the exact, foretold timing of the divine intervention preceding the Flood narrative: Vishnu manifests as Matsya precisely when the prophesied time arrives, indicating pralaya unfolds under cosmic order rather than randomness.
Indirectly, it emphasizes obedience to dharmic instruction and preparedness: since the Lord’s words prove true “in due time,” rulers and householders are urged to heed authoritative counsel (āpta-vākya) and act before crisis—an ethic central to the Manu episode.
No direct Vāstu or ritual procedure is stated in this verse; its practical takeaway is iconographic—Matsya is described as “horned” (śṛṅgī), a feature often linked in the wider flood account to fastening or guiding the vessel, informing how Matsya may be visualized in Purāṇic imagery.