Matsya Purana — The Greatness and Procedure of the Aṅgāra
यद्यदिष्टतमं लोके यच्चास्य दयितं गृहे तत्तद्गुणवते देयं तदेवाक्षय्यमिच्छता //
yadyadiṣṭatamaṃ loke yaccāsya dayitaṃ gṛhe tattadguṇavate deyaṃ tadevākṣayyamicchatā //
Whatever one holds most dear in the world, and whatever is most beloved within one’s home—those very things should be given to a worthy person; for the one who seeks undiminishing merit, that alone becomes truly inexhaustible.
This verse does not address Pralaya; it teaches dāna-dharma—how giving, especially of what one values most, yields akṣaya (undiminishing) merit.
It frames an ethical standard for giving: a householder (and likewise a king in public charity) should donate not leftovers but what is truly cherished, and should place it with a guṇavat (worthy, virtuous recipient) to maximize dharmic fruit.
No Vāstu or iconographic rule is stated here; the ritual takeaway is the principle of akṣaya-dāna—offer valued possessions to qualified recipients to make the merit ‘inexhaustible’.