Matsya Purana — The Kalyāṇa-Saptamī
ततो व्याहृतिमन्त्रेण विसृजेद्द्विजपुंगवान् शक्तितः पूजयेद्भक्त्या गुडक्षीरघृतादिभिः तिलपात्रं हिरण्यं च ब्राह्मणाय निवेदयेत् //
tato vyāhṛtimantreṇa visṛjeddvijapuṃgavān śaktitaḥ pūjayedbhaktyā guḍakṣīraghṛtādibhiḥ tilapātraṃ hiraṇyaṃ ca brāhmaṇāya nivedayet //
Thereafter, with the mantra of the Vyāhṛtis (the sacred utterances), he should ritually dismiss the foremost among the twice-born, the Brāhmaṇas. According to his means, he should honor them with devotion by offerings of jaggery (guda), milk, ghee (ghṛta), and the like; and he should present to a Brāhmaṇa a vessel of sesame and also gold.
This verse does not address pralaya directly; it focuses on dharma—how to conclude a rite by respectfully dismissing Brāhmaṇas and completing charity with sesame and gold.
It frames a core duty of the patron (king or householder): honoring learned Brāhmaṇas according to one’s means, offering food substances like jaggery, milk, and ghee, and completing the rite with prescribed gifts (tila and gold).
The ritual significance is the formal ‘visarjana’ (leave-taking) done with the Vyāhṛti mantra and the prescribed dāna items—sesame (tila) and gold (hiraṇya)—which mark proper completion and merit of the ceremony.