Matsya Purana — The Maheshvara Vow: Śiva-Caturdaśī Vrata
नमो भीमाय इत्येवं त्वामहं शरणं गतः गोमूत्रं गोमूयं क्षीरं दधि सर्पिः कुशोदकम् //
namo bhīmāya ityevaṃ tvāmahaṃ śaraṇaṃ gataḥ gomūtraṃ gomūyaṃ kṣīraṃ dadhi sarpiḥ kuśodakam //
Saying, “Homage to Bhīma,” I have thus taken refuge in you. (In the rite) one should employ cow’s urine, cow-dung, milk, curd, ghee, and water sanctified with kuśa grass.
This verse is not about pralaya; it focuses on protection and purification—taking refuge through an invocation and using sanctifying substances for ritual cleanliness.
It supports the dharmic duty of maintaining ritual purity: a king or householder is advised to use recognized purifiers (cow-derived substances and kuśa-water) and to seek divine protection through proper invocation.
Ritually, it lists standard purificatory media (often grouped with pañcagavya practice) and specifies kuśa-water, commonly used for sprinkling, consecration, and cleansing before rites.