Mahabharata 12.168.46

अत्र पिङ्गलया गीता गाथाः श्रूयन्ति पार्थिवयथा सा कृच्छ्रकालेऽपि लेभे धर्मं सनातनम्

atra piṅgalayā gītā gāthāḥ śrūyanti pārthivayathā sā kṛcchrakāle'pi lebhe dharmaṃ sanātanam

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