Chandogya Upanishad (with commentary) · Chapter 5.19

ChUpBh_5,18.2 kasmādevam /
yasmāttasya ha vai prakṛtasyaivaitasyā'tmano vaiśvānarasya mūrdhaiva sutejāścakṣurviśvarūpaḥ prāṇaḥ pṛthagvartmā'tmā sandeho bahulo bastireva rayiḥ pṛthivyeva pādau /
athavā vidhyarthametadvacanamevamupāsya iti /
athedānīṃ vaiśvānaravido bhojane 'gnihotraṃ saṃpipādayiṣannāha-etasya vaiśvānarasya bhokturura eva vedirākārasāmāvanyāt /
lomāni barhirvedyāmivorasi lomānyāstīrṇāni (na) dṛśyante /
hṛdayaṃ gārhapatyo hṛdayāddhi manaḥ praṇītamivānantarī bhavatyato 'nvāhāryapacano 'gnirmanaḥ /
āsyaṃ mukhamāhavanīya ivā'havanīyo hūyate 'sminnannamiti //2//
iti cchāndogyopaniṣadi pañcamādhyāyasyāṣṭādaśaḥ khaṇḍaḥ
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START ChUp 5,19.1
tad yad bhaktaṃ prathamam āgacchet tad dhomīyam |
sa yāṃ prathamām āhutiṃ juhuyāt tāṃ juhuyāt prāṇāya svāheti |
prāṇas tṛpyati

ChUpBh_5,19.1 tattatraivaṃ sati yadbhaktaṃ bhojanakāla āgacchedbhojanārthaṃ taddhotavyam /
agnihotrasampanmātrasya vivakṣitatvānnāgnihotrāṅgetikartavyatāprāptiriha /
sa bhoktā yāṃ prathamāmāhutiṃ juhuyāttāṃ kathaṃ juhutādityāha-prāṇāya svāhetyanena mantreṇā'hutiśabdādavadānapramāṇamannaṃ prakṣipedityarthaḥ /
tena prāṇastṛpyati //1 //
START ChUp 5,19.2
prāṇe tṛpyati cakṣus tṛpyati |
cakṣuṣi tṛpyaty ādityas tṛpyati |
āditye tṛpyati dyaus tṛpyati |
divi tṛpyantyāṃ yat kiṃca dyauś cādityaś cādhitiṣṭhatas tat tṛpyati |
tasyānu tṛptiṃ tṛpyati prajayā paśubhir annādyena tejasā brahmavarcaseneti