Matsya Purana — The Sun-Vow
नक्तमादित्यवारेण भोजयित्वा द्विजोत्तमान् पत्त्रैर्द्वादशसंयुक्तं रक्तचन्दनपङ्कजम् //
naktamādityavāreṇa bhojayitvā dvijottamān pattrairdvādaśasaṃyuktaṃ raktacandanapaṅkajam //
On a Sunday evening, having fed the best of the twice-born Brahmanas, one should offer a lotus anointed with red sandal paste, accompanied by twelve leaves.
This verse does not address pralaya; it focuses on dharmic ritual practice—feeding Brahmanas and making a prescribed offering connected with Sunday/Sūrya observance.
It frames a householder-style duty: honoring learned Brahmanas through भोजन (feeding) and then making a disciplined, rule-based offering—illustrating dana, hospitality, and orderly worship as part of daily/weekly dharma.
Ritually, it specifies the offering materials and count symbolism—red sandal paste and a lotus, with “twelve leaves,” likely reflecting a Sūrya-linked number (twelve months/Ādityas) used as a precise ritual requirement.