SB 12.1.36

saurāṣṭrāvanty-ābhīrāś ca
 śūrā arbuda-mālavāḥ
vrātyā dvijā bhaviṣyanti
 śūdra-prāyā janādhipāḥ
Word for word: 
śaurāṣṭra — residing in Śaurāṣṭra; avantī — in Avantī; ābhīrāḥ — and in Ābhīra; ca — and; śūrāḥ — residing in the Śūra province; arbuda-mālavāḥ — residing in Arbuda and Mālava; vrātyāḥ — deviated from all purificatory rituals; dvijāḥ — the brāhmaṇas; bhaviṣyanti — will become; śūdra-prāyāḥ — no better than śūdras; jana-adhipāḥ — the kings.
Translation: 
At that time the brāhmaṇas of such provinces as Śaurāṣṭra, Avantī, Ābhīra, Śūra, Arbuda and Mālava will forget all their regulative principles, and the members of the royal order in these places will become no better than śūdras.