Matsya Purana — The Kauśika Descendants: Śrāddha
गर्गादेशाद्वने दोग्ध्रीं रक्षन्तस्ते तपोधनाः खादामः कपिलामेतां वयं क्षुत्पीडिता भृशम् //
gargādeśādvane dogdhrīṃ rakṣantaste tapodhanāḥ khādāmaḥ kapilāmetāṃ vayaṃ kṣutpīḍitā bhṛśam //
“By Garga’s command, those ascetics—rich in austerity—were guarding the milch-cow in the forest. But we, being fiercely tormented by hunger, are eating this Kapilā (cow).”
Nothing directly—this verse is a moral-narrative moment about conduct under distress (hunger) and the protection of a sacred milch-cow, not a pralaya or cosmology passage.
It highlights dharma under pressure: even in hardship, harming a protected milch-cow is treated as a grave transgression. A king/householder is implied to uphold protection of cattle and support ascetics so that famine or neglect does not drive such violations.
No Vastu or temple-rule detail appears here; the ritual-ethical emphasis is on guarding a consecrated/protected cow and the karmic weight of violating that protection.