Mbh 1.192.2a

“Vaisampayana said, ‘Then those bulls among Brahmanas shaking their deer-skins and water-pots made of cocoanut-shells exclaimed, ‘Fear not, we will fight the foe!’ Arjuna smilingly addressing those Brahmanas exclaiming thus, said, ‘Stand ye aside as spectators (of the fray) Showering hundreds of arrows furnished with straight points even I shall check, like snakes with mantras, all those angry monarchs.’ Having said this, the mighty Arjuna taking up the bow he had obtained as dower accompanied by his brother Bhima stood immovable as a mountain. And beholding those Kshatriyas who were ever furious in battle with Karna ahead, the heroic brothers rushed fearlessly at them like two elephants rushing against a hostile elephant. Then those monarchs eager for the fight fiercely exclaimed, ‘The slaughter in battle of one desiring to fight is permitted.’ And saying this, the monarchs suddenly rushed against the Brahmanas. And Karna endued with great energy rushed against Jishnu for fight. And Salya the mighty king of Madra rushed against Bhima like an elephant rushing against another for the sake of a she-elephant in heat; while Duryodhana and others engaged with the Brahmanas, skirmished with them lightly and carelessly. Then the illustrious Arjuna beholding Karna, the son of Vikartana (Surya), advancing towards him, drew his tough bow and pieced him with his sharp arrows. And the impetus of those whetted arrows furnished with fierce energy made Radheya (Karna) faint. Recovering consciousness Karna attacked Arjuna with greater care than before. Then Karna and Arjuna, both foremost of victorious warriors, desirous of vanquishing each other, fought madly on. And such was the lightness of hand they both displayed that (each enveloped by the other’s shower of arrows) they both became invisible (unto the spectators of their encounter). ‘Behold the strength of my arms.’