Mahabharata 6.20.4

उभे सेने बृहती भीमरूपे; तथैवोभे भारत दुर्विषह्येतथैवोभे स्वर्गजयाय सृष्टे; तथा ह्युभे सत्पुरुषार्यगुप्ते

ubhe sene bṛhatī bhīmarūpe; tathaivobhe bhārata durviṣahyetathaivobhe svargajayāya sṛṣṭe; tathā hyubhe satpuruṣāryagupte

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