Matsya Purana — The Greatness of Prayāga
शृणु प्रयागमाहात्म्यं यथादृष्टं यथाश्रुतम् प्रत्यक्षं च परोक्षं च यथान्यस्तं भविष्यति //
śṛṇu prayāgamāhātmyaṃ yathādṛṣṭaṃ yathāśrutam pratyakṣaṃ ca parokṣaṃ ca yathānyastaṃ bhaviṣyati //
Listen to the greatness (māhātmya) of Prayāga, as it has been seen and as it has been heard—both what is directly known and what is known indirectly—exactly as it has been set down in tradition, and as it shall be recounted.
This verse does not describe pralaya directly; it establishes an authoritative mode of narration—combining witnessed (pratyakṣa) and traditional/heard (parokṣa, śruta) accounts—before beginning the Prayāga sacred-history section.
It frames dharmic practice through reliable transmission: a king or householder is encouraged to follow tīrtha-related duties (pilgrimage, vows, charity) based on both tested experience and established śāstric tradition, rather than whim.
No specific Vāstu or temple rule appears in this verse; its ritual significance is preparatory—announcing a tīrtha-māhātmya discourse that typically guides pilgrimage rites, bathing procedures, and merit-producing observances at Prayāga.