nāgnau juhvati paśavo vā iḍā netpaśūnagnau pravṛṇajāmeti tasmānnāgnau juhvati //
They (the priests and sacrificer) eat it (the idâ), and do not offer it up in the fire; for assuredly the idâ means cattle: hence they do not offer it in the fire, lest they should throw the cattle into the fire.