Matsya Purana — The Sarasvata Vrata: Vow for Sweet Speech
अथवादित्यवारेण ग्रहताराबलेन च पायसं भोजयेद्विप्रान् कृत्वा ब्राह्मणवाचनम् //
athavādityavāreṇa grahatārābalena ca pāyasaṃ bhojayedviprān kṛtvā brāhmaṇavācanam //
Or else, on a Sunday—taking into account the strength of the planets and stars—one should feed the Brahmins with sweet milk-rice (pāyasa), after arranging the recitation of Brahminical sacred texts.
This verse does not discuss Pralaya; it focuses on ritual merit gained through timed charity—feeding Brahmins on an auspicious day while considering planetary and stellar strength.
It presents a householder/kingly dharma practice: selecting an auspicious time (graha–tārā bala), sponsoring sacred recitation, and offering nourishing food (pāyasa) to Brahmins as a meritorious act of dāna and hospitality.
The ritual significance is astrological timing (muhūrta via graha–tārā bala) and the paired act of brāhmaṇa-vācana (scriptural recitation) with brāhmaṇa-bhojana (feeding), using pāyasa as the prescribed offering.