Mahabharata 5.122.32
त्रिवर्गयुक्ता प्राज्ञानामारम्भा भरतर्षभधर्मार्थावनुरुध्यन्ते त्रिवर्गासंभवे नराः
trivargayuktā prājñānāmārambhā bharatarṣabhadharmārthāvanurudhyante trivargāsaṃbhave narāḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book