athāpa upaspṛśyāthainān avamṛśato 'dhvaryuś ca yajamānaś ca pūrvayor dakṣiṇam evādhvaryur avamṛśaty uttaraṃ yajamānaḥ$yady āhutau hutāyāṃ kṛṣṇo dhūmo dakṣiṇāṃ diśam abhinihanyād vāto vā prasavyaṃ dhūmam āveṣṭayed yajamāno mriyeta sarvaprāyaścittaṃ juhuyāj juhuyāt