Mahabharata 4.53.61

तथा शीघ्रास्त्रयुद्धे तु वर्तमाने सुदारुणेशीघ्राच्छीघ्रतरं पार्थः शरानन्यानुदीरयत्

tathā śīghrāstrayuddhe tu vartamāne sudāruṇeśīghrācchīghrataraṃ pārthaḥ śarānanyānudīrayat

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