Skandapurana 16.107.23

16.107.23

pūrvaṃ saṃsnāpya vidhinā paṃcāmṛtarasodakaiḥ ..
gomūtraṃ gomayaṃ kṣīraṃ dadhi sarpiḥ kuśodakam .. 23 ..

First bathing [the deity] according to the rule with the five nectars and water: / cow's urine, cow dung, milk, curds, clarified butter, and kuśa grass water.