AB, 1, 22, 2.1 upa hvaye sudughāṃ dhenum etāṃ hiṃkṛṇvatī vasupatnī vasūnām abhi tvā deva savitaḥ sam ī vatsaṃ na mātṛbhiḥ saṃ vatsa iva mātṛbhir yas te stanaḥ śaśayo yo mayobhūr gaur amīmed anu vatsam miṣantaṃ namased upa sīdata saṃjānānā upa sīdann abhijñv ā daśabhir vivasvato duhanti saptaikāṃ samiddho agnir aśvinā samiddho agnir vṛṣaṇāratir divas tad u prayakṣatamam asya karmātmanvan nabho duhyate ghṛtam paya ut tiṣṭha brahmaṇaspate 'dhukṣat pipyuṣīm iṣam upa dravapayasā godhug oṣam ā sute siñcata śriyam ā nūnam aśvinor ṛṣiḥ sam u tye mahatīr apa ity ekaviṃśatir abhirūpāḥ /

ṚV, 1, 62, 6.1 tad u prayakṣatamam asya karma dasmasya cārutamam asti daṃsaḥ /

ŚāṅkhŚS, 5, 10, 8.4 tad u prayakṣatamam iti duhyamānāyām //