Mahabharata 12.37.20
एडकाश्वखरोष्ट्रीणां सूतिकानां गवामपिमानुषीणां मृगीणां च न पिबेद्ब्राह्मणः पयः
eḍakāśvakharoṣṭrīṇāṃ sūtikānāṃ gavāmapimānuṣīṇāṃ mṛgīṇāṃ ca na pibedbrāhmaṇaḥ payaḥ
Our plain-language meaning of this verse is waiting for scholar review.