Mahabharata 7.166.36

न हि देवा न गन्धर्वा नासुरा न च राक्षसाःअद्य शक्ता रणे जेतुं रथस्थं मां नरर्षभ

na hi devā na gandharvā nāsurā na ca rākṣasāḥadya śaktā raṇe jetuṃ rathasthaṃ māṃ nararṣabha

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