Mahabharata 6.48.42

ततः शरसहस्रेण सुप्रयुक्तेन पाण्डवःअर्जुनः समरश्लाघी भीष्मस्यावारयद्दिशः

tataḥ śarasahasreṇa suprayuktena pāṇḍavaḥarjunaḥ samaraślāghī bhīṣmasyāvārayaddiśaḥ

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