Mahabharata 12.37.10

अप्रवृत्तेरमर्त्यत्वं मर्त्यत्वं कर्मणः फलम्अशुभस्याशुभं विद्याच्छुभस्य शुभमेव च

apravṛtteramartyatvaṃ martyatvaṃ karmaṇaḥ phalamaśubhasyāśubhaṃ vidyācchubhasya śubhameva ca

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