Matsya Purana — The Aśūnyaśayana Vrata
अव्यङ्गाङ्गाय विप्राय वैष्णवाय कुटुम्बिने दातव्या वेदविदुषे भावेनापतिताय च //
avyaṅgāṅgāya viprāya vaiṣṇavāya kuṭumbine dātavyā vedaviduṣe bhāvenāpatitāya ca //
One should give charity to a brāhmaṇa whose limbs are unimpaired, who is a Vaiṣṇava devoted to Viṣṇu, a householder, learned in the Vedas, and not fallen from right conduct—giving with sincere faith and reverence.
This verse does not address pralaya or cosmology; it focuses on dāna-dharma—how charity should be directed toward qualified recipients and offered with sincere intention.
It guides householders and rulers to practice righteous charity by selecting worthy recipients (learned, disciplined, Vaiṣṇava brāhmaṇas) and emphasizing inner faith (bhāva), aligning giving with dharma rather than mere display.
No vāstu or temple-architecture rule is stated here; the ritual takeaway is the principle of qualified dāna—proper recipient-selection and faithful intention as key factors in the merit of giving.