Mahabharata 5.151.1

वैशंपायन उवाच · vaiśaṃpāyana uvāca

वासुदेवस्य तद्वाक्यमनुस्मृत्य युधिष्ठिरःपुनः पप्रच्छ वार्ष्णेयं कथं मन्दोऽब्रवीदिदम्

vāsudevasya tadvākyamanusmṛtya yudhiṣṭhiraḥpunaḥ papraccha vārṣṇeyaṃ kathaṃ mando'bravīdidam

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