Śatapatha Brāhmaṇa ("of a hundred paths") 14.1.3.32

14.1.3.32

apa vā etebhyaḥpraṇāḥ krāmanti ye yajñe dhuvanaṃ tanvate punaḥ prasalavi trirdhūnvanti ṣaṭ sampadyante ṣaḍvā ime śīrṣanprāṇāstānevāsminnetaddadhāti śrapayanti rauhiṇau sa yadārcirjāyate atha hiraṇyamādatte

But, indeed, the breathings depart from those who perform the fanning at the sacrifice. They fan again thrice in the sunwise way,--this makes six; and six in number are these breathings (vital airs) in the head: it is these he thus lays into it. They cook the two Rauhina (cakes). When a blaze is produced, he takes off the gold (plate).