Mbh 8.90.1f

With that white gear on his head, he looked like the Udaya hill illumined with the rays of the sun. Thus that she-snake (whom Arjuna had killed at Khandava) of excellent mouth, through her son in the form of an arrow, sped by Surya's son, beholding Arjuna of exceeding energy and might standing with his head at a level with the reins of the steeds, took away his diadem only, that well-made ornament (formerly) owned by Aditi's son and endued with the effulgence of Surya himself. But Arjuna also (as will appear in the sequel) did not return from that battle without causing the snake to succumb to the power of Yama. Sped from Karna's arms, that costly shaft resembling fire or the sun in effulgence, viz., that mighty snake who from before had become the deadly foe of Arjuna, thus crushing the latter's diadem, went away. Having burnt the gold-decked diadem of Arjuna displayed on his head, he desired to come to Arjuna once more with great speed. Asked, however, by Karna (who saw him but knew him not), he said these words, "Thou hadst sped me, O Karna, without having seen me. It was for this that I could not strike off Arjuna's head. Do thou quickly shoot me once again, after seeing me well. I shall then slay thy foe and mine too." Thus addressed in that battle by him, the Suta's son said, "Who are you possessed of such fierce form?" The snake answered, saying, "Know me as one that has been wronged by Partha. My enmity towards him is due to his having slain my mother. If the wielder of the thunderbolt himself were to protect Partha, the latter would still have to go to the domains of the king of the pitris. Do not disregard me. Do my bidding. I will slay thy foe. Shoot me without delay." Hearing those words, Karna said, "Karna, O snake, never desires to have victory in battle today by relying on another's might. Even if I have to slay a hundred Arjunas, I will not, O snake, still shoot the same shaft twice."