Śatapatha Brāhmaṇa ("of a hundred paths") 10.2.5.13

10.2.5.13

atha pañcamyai citeḥ asapatnā virājaśca prathamāhamupadadhāti stomabhāgā ekaikāmanvahaṃ tāḥ skṛtsādayati sakṛtsūdadohasādhivadati tūṣṇīm māsaṃ stomabhāgāpurīṣamabhiharantyetāvānhaimantika stau kāmastadyāvānhaimantika ṛtau kāmastaṃ tatsarvamātmānamabhisaṃcinute

And of the fifth layer (of bricks) he lays down the Asapatnâ and Virâg (bricks) on the first day, and of the Stomabhâgâs one each day: these he 'settles' together once, and pronounces once the sûdadohas-formula over them. For a month they silently apply the earth-layer for the Stomabhâgâs, for so long desire (lasts) in the winter season: thus he builds for himself a body so as to obtain all of whatever desire there is in the winter season.