Mahabharata 9.7.43
एवमेते बलौघेन परस्परवधैषिणःउपयाता नरव्याघ्राः पूर्वां संध्यां प्रति प्रभो
evamete balaughena parasparavadhaiṣiṇaḥupayātā naravyāghrāḥ pūrvāṃ saṃdhyāṃ prati prabho
Our plain-language meaning of this verse is waiting for scholar review.