Srimad-Bhagavatam: Canto 3 - Chapter 1 - Verse 22
Sanskrit:
गौरजो महिष: कृष्ण: सूकरो गवयो रुरु: ।द्विशफा: पशवश्चेमे अविरुष्ट्रश्च सत्तम ॥ २२ ॥
ITRANS:
gaur ajo mahiṣaḥ kṛṣṇaḥsūkaro gavayo ruruḥdvi-śaphāḥ paśavaś cemeavir uṣṭraś ca sattama
Translation:
O purest Vidura, of the lower animals the cow, goat, buffalo, kṛṣṇa stag, hog, gavaya animal, deer, lamb and camel all have cloven hooves.