Mahabharata 12.101.9

चैत्र्यां वा मार्गशीर्ष्यां वा सेनायोगः प्रशस्यतेपक्वसस्या हि पृथिवी भवत्यम्बुमती तथा

caitryāṃ vā mārgaśīrṣyāṃ vā senāyogaḥ praśasyatepakvasasyā hi pṛthivī bhavatyambumatī tathā

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