Matsya Purana — Genealogy of Kaśyapa: Ādityas
रुद्राणां च गणं तद्वद् गोमहिष्यो वराङ्गनाः सुरभिर्जनयामास कश्यपात्संयतव्रता //
rudrāṇāṃ ca gaṇaṃ tadvad gomahiṣyo varāṅganāḥ surabhirjanayāmāsa kaśyapātsaṃyatavratā //
Likewise, Surabhī—the noble-limbed lady of restrained vows—bore, from Kaśyapa, the hosts of the Rudras, and also cows and buffaloes.
This verse belongs to creation/genealogy (sarga) material: it explains how specific classes of beings—Rudra-hosts and cattle—are generated through Kaśyapa and Surabhī, rather than describing dissolution (pralaya).
By grounding cattle (cows and buffaloes) in sacred lineage, the verse supports the householder and royal duty of protecting livestock—central to agrarian prosperity, yajña-support, and social welfare in Purāṇic dharma.
No direct Vāstu/temple rule is stated; the ritual takeaway is indirect—cows and buffaloes are sanctified as divinely originated, reinforcing their importance in offerings, dairy-based rites, and household ritual economy.