Mahabharata 1.3.75

तमश्विनावाहतुःप्रीतौ स्वस्तवानया गुरुवृत्त्याउपाध्यायस्य ते कार्ष्णायसा दन्ताःभवतो हिरण्मया भविष्यन्तिचक्षुष्मांश्च भविष्यसिश्रेयश्चावाप्स्यसीति

tamaśvināvāhatuḥprītau svastavānayā guruvṛttyāupādhyāyasya te kārṣṇāyasā dantāḥbhavato hiraṇmayā bhaviṣyanticakṣuṣmāṃśca bhaviṣyasiśreyaścāvāpsyasīti

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