Mahabharata 7.78.1
संजय उवाच · saṃjaya uvāca
एवमुक्त्वार्जुनं राजा त्रिभिर्मर्मातिगैः शरैःप्रत्यविध्यन्महावेगैश्चतुर्भिश्चतुरो हयान्
evamuktvārjunaṃ rājā tribhirmarmātigaiḥ śaraiḥpratyavidhyanmahāvegaiścaturbhiścaturo hayān
Our plain-language meaning of this verse is waiting for scholar review.