Matsya Purana — Sādhāraṇa Śrāddha: General Ancestral Rite
उच्छेषणं भूमिगतम् अजिह्मस्यास्तिकस्य च दासवर्गस्य तत्पित्र्यं भागधेयं प्रचक्षते //
uccheṣaṇaṃ bhūmigatam ajihmasyāstikasya ca dāsavargasya tatpitryaṃ bhāgadheyaṃ pracakṣate //
They declare that the lawful share (bhāgadheya) of the servant-class is the leftover food placed upon the ground—given to one who is straightforward and faithful—and that this is reckoned as their ancestral portion.
Nothing directly—this verse is ethical-social instruction about customary shares (bhāgadheya), not cosmology or pralaya.
It frames a minimum, customary entitlement for dependents/servants: a householder (and by extension a ruler overseeing dharma) must ensure provision, even if in the form of leftovers, and value qualities like honesty (ajihma) and faithfulness (āstika).
No Vāstu rule is stated; the only ritual-ethical undertone is the notion of “pitrya” (ancestral/customary right), indicating a traditional dharma-based allocation within the household.