Mahabharata 13.17.5

यत्तद्रहस्यं परमं ब्रह्मप्रोक्तं सनातनम्वक्ष्ये यदुकुलश्रेष्ठ शृणुष्वावहितो मम

yattadrahasyaṃ paramaṃ brahmaproktaṃ sanātanamvakṣye yadukulaśreṣṭha śṛṇuṣvāvahito mama

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