Śatapatha Brāhmaṇa ("of a hundred paths") 6.7.1.6

6.7.1.6

kṛṣṇājine niṣyūto bhavati | yajño vai kṛṣṇājinaṃ yajño vā etaṃ yantumarhati yajñenaitaṃ devā abibharuryajñenaivaitametadbibharti lomataścandāṃsi vai lomāni candāṃsi vā etaṃ yantumarhanti candobhiretaṃ devā abibharuścandobhirevainametadbibharti

It is sown up in a black antelope's skin; for the black antelope skin is the sacrifice, and the sacrifice is able to sustain that (Agni): by means of the sacrifice the gods carried him, and by means of the sacrifice he now carries him;--with the hair (inside), for the hair are the metres, and the metres are indeed able to sustain him: by the metres the gods carried him, and by the metres he now carries him.