Mahabharata 7.18.18

ततो नैवार्जुनस्तत्र न रथो न च केशवःप्रत्यदृश्यत घोरेण शरवर्षेण संवृतः

tato naivārjunastatra na ratho na ca keśavaḥpratyadṛśyata ghoreṇa śaravarṣeṇa saṃvṛtaḥ

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