Śatapatha Brāhmaṇa ("of a hundred paths") 14.1.2.20

14.1.2.20

athaināndhūpayati aśvasya tvā vṛṣṇaḥ śaknā dhūpayāmīti vṛṣā vā aśvo vīryam vai vṛṣā vīryeṇaivainametatsamardhayati kṛtsnaṃ karoti devayajane pṛthivyā makhāya tvā makhasya tvā śīrṣṇa ityasāveva bandhurevamitarau tūṣṇīm pinvane tūṣnīṃ rauhiṇakapāle

He then fumigates these (vessels) with (Vâg. S. XXXVII, 9), 'With dung of the stallion, the impregnator, I fumigate thee,'--for the stallion is an impregnator, and the impregnator means vigour: with vigour he thus supplies and completes it,--'on the Earth's place of divine worship: for Makha thee, for Makha's head thee!' the import of this is the same as before. In the same way (he fumigates) the other two (Mahâvîra pots); silently the two milking-bowls, and silently the two Rauhina-plates.