Mahabharata 3.188.4

आश्चर्यभूतं भवतः श्रुतं नो वदतां वरमुने भार्गव यद्वृत्तं युगादौ प्रभवाप्ययौ

āścaryabhūtaṃ bhavataḥ śrutaṃ no vadatāṃ varamune bhārgava yadvṛttaṃ yugādau prabhavāpyayau

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