Matsya Purana — Yayāti in Amarāvatī-like Splendor: Devayānī Installed
*ययातिरुवाच दातव्यं याचमानस्य हीति मे व्रतमाहितम् त्वं च याचसि कामं मां ब्रूहि किं करवाणि तत् //
*yayātiruvāca dātavyaṃ yācamānasya hīti me vratamāhitam tvaṃ ca yācasi kāmaṃ māṃ brūhi kiṃ karavāṇi tat //
Yayāti said: “To give to one who asks is the vow I have firmly established. And since you too request a desire of me, tell me—what should I do?”
This verse does not address pralaya or cosmology; it focuses on ethical conduct—specifically, the king’s vow to give when asked.
It presents dāna as a binding vrata (vow): a ruler (and by extension a householder) should respond to a legitimate request with generosity, treating charity as a dharmic obligation rather than mere preference.
No Vāstu/temple-building or ritual procedure is mentioned directly; the ritual element here is the concept of a vrata—an undertaken vow guiding righteous action.