Śatapatha Brāhmaṇa ("of a hundred paths") 3.8.1.16

3.8.1.16

tadyatrainaṃ nividhyanti | tatpurā saṃjñapanājjuhoti svāhā devebhya ityatha yadā prāha saṃjñaptaḥ paśurityatha juhoti devebhyaḥ svāheti purastātsvāhākṛtayo vā anye devā upariṣṭātsvāhākṛtayo 'nye tānevaitatprīṇāti ta enamubhaye devāḥ prītāḥ svargaṃ lokamabhivahanti te vā ete paripaśavye ityāhutī sa yadi kāmayeta juhuyādete yadyu kāmayetāpi nādriyeta

When they hold it down, then, before the strangling, he offers with 'Hail, to the gods!' And when (the butcher) says, 'Quieted is the victim,' he offers with, 'To the gods, Hail!' Thus some of the gods are preceded by 'Hail,' and others followed by 'Hail;' he thereby gratifies them, and thus gratified both kinds of gods convey him to the heavenly world. These are the so-called 'paripasavya ' oblations; he may offer them if he choose; or, if he choose, he need not mind them.