Mahabharata 12.200.32

बाहुभ्यां क्षत्रियशतं वैश्यानामूरुतः शतम्पद्भ्यां शूद्रशतं चैव केशवो भरतर्षभ

bāhubhyāṃ kṣatriyaśataṃ vaiśyānāmūrutaḥ śatampadbhyāṃ śūdraśataṃ caiva keśavo bharatarṣabha

Our plain-language meaning of this verse is waiting for scholar review.