Śatapatha Brāhmaṇa ("of a hundred paths") 9.3.4.7

9.3.4.7

tadyāni pārthāni | tāni rājasūyasya vājaprasavīyaṃ tadyattāni juhoti tadrājusūyena sūyate 'tha yāni caturdaśottarāṇi tato yāni sapta pūrvāṇi tāni vājapeyasya vājaprasavīyaṃ tadyattāni juhoti tadvājapeyena sūyate 'tha yāni saptottarāṇi tānyagnestadyattāni juhoti tadagnisavena sūyate

Now these Pârtha (oblations) are the Vâgaprasavîya of the Râgasûya; and by offering these (oblations) he is consecrated by the Râgasûya; and the first seven of the succeeding fourteen (Vâgaprasavîya oblations) are the Vâgaprasavîya ceremony of the Vâgapeya: thus, by offering these he is consecrated by the Vâgapeya. And what other seven there are, they belong to Agni (or, the Agnikayana): by offering these, he is consecrated by the Agni-consecration.