Mahabharata 12.60.45

तस्माद्वर्णा ऋजवो जातिधर्माः; संसृज्यन्ते तस्य विपाक एषःएकं साम यजुरेकमृगेका; विप्रश्चैकोऽनिश्चयस्तेषु दृष्टः

tasmādvarṇā ṛjavo jātidharmāḥ; saṃsṛjyante tasya vipāka eṣaḥekaṃ sāma yajurekamṛgekā; vipraścaiko'niścayasteṣu dṛṣṭaḥ

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