Jaiminīya (Talavakāra) Brāhmaṇa 25.157

25.157

pra mithunena jāyate ya evaṃ veda
tasya pūrvārdhaṃ ca bhūyiṣṭhaṃ bhājayanti
tasmātpaśavaḥ pūrvārdhena ca jaghanārdhena ca bhūyiṣṭhaṃ bhuñjanti vahanti
pūrvārdhena duhre ca jaghanārdhena pra ca janayanti
ubhayaṃ dhenupayasaṃ cānaḍutpayasaṃ cāvarunddhe ya evaṃ veda
ubhe yadindra rodasī
iti ṣaṭpadāṣṣaṣṭhe'hanbhavanti
tenaiva ṣaḍahāni kalpante
devāsurāḥ paśuṣvaspardhanta
te'surāḥ paśubhissaha samudramabhyavāyan
te devā akāmayanta vṛñjīmahyasurāṇāṃ paśūniti
ta etānaṃkānapaśyannetā ṛco
devī janitryajījanadbhadrā janitryajījanad
iti
etadaṅke rūpam
tairudārumpaṃstānpaśūn
tā etāḥ paśavyā ṛcaḥ
ava paśūnrunddhe bahupaśurbhavatyetābhirṛgbhistuṣṭuvānaḥ

He propagates with a pair who knows thus. And they allot the greatest share to its forepart. Therefore cattle enjoy most with the forepart and the hindpart: they carry with the forepart, and they are milked with the hindpart, and they bring forth [young]. He secures both the milk of the cow and the milk of the draft-ox who knows thus. "Both, O Indra, the two rodasi"—thus there are six-footed [verses] on the sixth day. Thereby the six-day periods are arranged. The gods and the Asuras contended for cattle. Those Asuras entered into the ocean together with the cattle. Those gods desired: "May we take away the cattle of the Asuras." They saw these barbs, these verses: "The divine mother has brought forth, the auspicious mother has brought forth"—this is the form of the barb. With them they dragged up those cattle. These are the cattle-bringing verses. He secures cattle, he becomes rich in cattle, praising with these verses.