Agniveshyagrihyasutra 3.8.2.49

3.8.2.49

atra ṣaḍḍhotāraṃ vyācaṣṭe ṣaḍḍhotā sūryaṃ te cakṣurgacchatu vātamātmā dyāṃ ca gaccha pṛthivīṃ ca dharmaṇā \

Here he explains the six-hotṛ formula: 'Six-hotṛ: may your eye go to the sun, your breath to the wind, go to heaven and earth according to law;