Mahabharata 2.13.42

तथा तु डिभकं श्रुत्वा हंसः परपुरंजयःप्रपेदे यमुनामेव सोऽपि तस्यां न्यमज्जत

tathā tu ḍibhakaṃ śrutvā haṃsaḥ parapuraṃjayaḥprapede yamunāmeva so'pi tasyāṃ nyamajjata

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