Śatapatha Brāhmaṇa ("of a hundred paths") 5.1.2.14

5.1.2.14

atha yatra rājānaṃ krīṇāti | taddakṣiṇataḥ prativeśataḥ keśavātpuruṣātsīsena parisrutaṃ krīṇāti na vā eṣa strī na pumānyatkeśavaḥ puruṣo yadaha pumāṃstena na strī yadu keśavastena na pumānnaitadayo na hiraṇyaṃ yatsīsaṃ naiṣa somo na surā yatparisruttasmātkeśavātpuruṣātsīsena parisrutaṃ krīṇāti

Now when he buys the king (Soma), he at the same time buys for a piece of lead the Parisrut (immature spirituous liquor) from a long-haired man near by towards the south. For a long-haired man is neither man nor woman; for, being a male, he is not a woman; and being long-haired (a eunuch), he is not a man. And that lead is neither iron nor gold; and the Parisrut-liquor is neither Soma nor Surâ: this is why he buys the Parisrut for a piece of lead from a long-haired man.