Mahabharata 6.105.3

कथं शांतनवो भीष्मः स तस्मिन्दशमेऽहनिअयुध्यत महावीर्यः पाण्डवैः सहसृञ्जयैः

kathaṃ śāṃtanavo bhīṣmaḥ sa tasmindaśame'haniayudhyata mahāvīryaḥ pāṇḍavaiḥ sahasṛñjayaiḥ

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