CC Madhya 4.59
āpane mādhava-purī kaila abhiṣeka
The villagers brought a large quantity of tulasī leaves, flowers and various kinds of garments. Then Śrī Mādhavendra Purī personally began the abhiṣeka [bathing ceremony].
In the Hari-bhakti-vilāsa (sixth vilāsa, verse 30) it is stated that the Deity should be bathed in water mixed with yogurt and milk, accompanied by the sounds of conchshells, bells and other instruments and the chanting of the mantra oṁ bhagavate vāsudevāya namaḥ, as well as the chanting of the Brahma-saṁhitā verses beginning cintāmaṇi-prakara-sadmasu kalpa-vṛkṣa-lakṣāvṛteṣu surabhīr abhipālayantam.