Mahabharata 1.61.2

श्रोतुमिच्छामि तत्त्वेन मानुषेषु महात्मनाम्जन्म कर्म च भूतानामेतेषामनुपूर्वशः

śrotumicchāmi tattvena mānuṣeṣu mahātmanāmjanma karma ca bhūtānāmeteṣāmanupūrvaśaḥ

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