Matsya Purana — Conclusion of the Prayaga Mahatmya: Kingship Restored
तत्र स्नात्वा च जप्त्वा च विधिदृष्टेन कर्मणा दानं दत्त्वा द्विजाग्र्येभ्यो गतः स्वभवनं तदा //
tatra snātvā ca japtvā ca vidhidṛṣṭena karmaṇā dānaṃ dattvā dvijāgryebhyo gataḥ svabhavanaṃ tadā //
There, having bathed and performed japa according to the rite prescribed in the scriptures, and having given charitable gifts to the foremost of the twice-born, he then returned to his own home.
This verse does not address pralaya directly; it emphasizes everyday dharmic practice—ritual bathing, mantra-recitation, and charity—as a means of sustaining religious order.
It models the ideal conduct of a responsible person: perform purification (snāna), disciplined recitation (japa) as prescribed (vidhi), honor learned Brāhmaṇas through dāna, and then return to household life—showing dharma integrated with daily routine.
The significance is ritual rather than architectural: the verse stresses vidhi (proper procedure) for snāna and japa, and prescribes dāna to qualified recipients (dvijāgrya), highlighting correctness of rite and ethics of giving.