Mahabharata 10.1.8
अवध्यः सर्वभूतानां वज्रसंहननो युवापाण्डवैः समरे पुत्रो निहतो मम संजय
avadhyaḥ sarvabhūtānāṃ vajrasaṃhanano yuvāpāṇḍavaiḥ samare putro nihato mama saṃjaya
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book