Mahabharata 7.131.26

कार्ष्णायसमयं घोरमृक्षचर्मावृतं महत्युक्तं गजनिभैर्वाहैर्न हयैर्नापि वा गजैः

kārṣṇāyasamayaṃ ghoramṛkṣacarmāvṛtaṃ mahatyuktaṃ gajanibhairvāhairna hayairnāpi vā gajaiḥ

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