Kauṣītaki (Śāṅkhāyana) Brāhmaṇa 3.7.22

3.7.22

yad upāṃśu yajati tena somam prīṇāti /

sacrifice; the two are offered to inaudibly, and in a higher tone, to prevent sameness. In that he sacrifices inaudibly, thereby he delights Soma; in that (he sacrifices) in a higher tone, thereby (he delights) Agni. In that he sacrifices to Indra and Agni at the new moon sacrifice, it is because Indra and Agni are supports; verily (the offering serves) for a support. In that, mingling, he sacrifices to Indra at the new moon sacrifice, that is the light of the new moon sacrifice, for the moon is not then seen. In that, without mingling, he offers the butter of the inaudible (sacrifice) between the two cakes, it is for preventing sameness. In that, mingling, he offers the butter of the inaudible (sacrifice) in the midst of the milk offering (sāmnāyya), the explanation of that has been given. In that he sacrifices at the end to Agni Sviṣṭakṛt, it is because he gives the oblation to the gods; he who divides out food tastes it himself last. Again Sviṣṭakṛt is Rudra and he enjoys at the end. Therefore to him at the end he sacrifices. In that (offering) the invitatory and offering verses are of the same metre, but the Nigada differs; though this sameness is avoided. After saying vaṣaṭ, he touches water; the waters are healing and medicine; verily thus are healing and medicine produced at the end in the sacrifice.