havirdhānayor īṣe dakṣiṇe methyāv upanihanti divo viṣṇa iti dakṣiṇāṃ viṣṇor nu kam ity uttarām$pratyuṣṭaṃ rakṣaḥ pratyuṣṭā arātaya ity āhavanīye gārhapatye vā pratitapya yajamāna havir nirvapsyāmīty āmantrayate