Matsya Purana — Prayaga Mahatmya: Trimurti Presence
यस्मिञ्जुह्वन्स्वकं पापं नरकं च न पश्यति एवं ब्रह्मा च विष्णुश्च प्रयागे स महेश्वरः //
yasmiñjuhvansvakaṃ pāpaṃ narakaṃ ca na paśyati evaṃ brahmā ca viṣṇuśca prayāge sa maheśvaraḥ //
In that sacred place, one who performs the homa (fire-offering) casts his own sins into the fire and does not behold hell. Thus, at Prayāga, Brahmā and Viṣṇu are present—there indeed is Maheśvara (Śiva).
This verse is not about pralaya; it is a tirtha-mahātmya statement asserting Prayāga’s power to destroy sin through ritual offering, thereby preventing descent to naraka.
For householders (and kings as exemplary householders), it supports the dharmic duty of performing yajña/oblations and visiting tīrthas; such acts are presented as means to purify pāpa and uphold moral order.
The ritual significance is central: juhvan (offering oblations) at Prayāga is said to ‘burn’ one’s sins and avert naraka, and the verse frames Prayāga as a confluence of divine presence (Brahmā–Viṣṇu–Maheśvara).