Shatapatha Brahmana 6.6.4.11

6.6.4.11

atha prāyaścittī karoti | sarvebhyo vā eṣa etaṃ kāmebhyo ādhatte tadyadevāsyātra kāmānāṃ vyavacidyate 'gnāvanugate tadevaitatsaṃtanoti saṃdadhātyubhe prāyaścittī karotyadhvaraprāyaścittiṃ cāgniprāyaścittiṃ cādhvarasya pūrvāmathāgnestasyokto bandhuḥ

He performs two expiations. For it is for (the obtainment of) all his wishes that he makes up that (fire); and whatever part of his wishes is here cut off when the fire goes out, that he thereby joins together and heals. He performs both expiations, that of the (Soma) sacrifice and that of the fire-altar,--first that of the sacrifice, then that of the fire-altar: the significance of this has been explained.