Matsya Purana 275.22

275.22

caturbhiḥ kalaśairbhūyaḥ tataste dvijapuṅgavāḥ.
snāpayeyuḥ prasannāgāḥ sarvābharayaṇabhūṣitāḥ .. 275.21

Afterwards that Brāhmaṇa should decorate a blessed cow with the ornaments and bathe her with four vases He should seat her on the golden seat and bathe her by reciting these mantras viz:—"Devasyar tvāṇ" and say 'I shall now bathe all the limbs born of you'—21-22