Mahabharata 12.200.4

असितो देवलस्तात वाल्मीकिश्च महातपाःमार्कण्डेयश्च गोविन्दे कथयत्यद्भुतं महत्

asito devalastāta vālmīkiśca mahātapāḥmārkaṇḍeyaśca govinde kathayatyadbhutaṃ mahat

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