Mahabharata 12.275.10

यदा न शोचेमहि किं नु न स्या;द्धर्मेण वा नारद कर्मणा वाकृतान्तवश्यानि यदा सुखानि; दुःखानि वा यन्न विधर्षयन्ति

yadā na śocemahi kiṃ nu na syā;ddharmeṇa vā nārada karmaṇā vākṛtāntavaśyāni yadā sukhāni; duḥkhāni vā yanna vidharṣayanti

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