Mahabharat
तथा निवातकवचाः कालखञ्जाश च दानवाः दैवतैर अप्य अवध्यास ते एकेन युधि पातिताः ॥ ४-४४-९ ॥
'He alone defeated in battle the fierce Nivatakavachas and Kalakhanchas—beings even the gods themselves could not slay.' ॥ 4-44-9 ॥
english translation
tathA nivAtakavacAH kAlakhaJjAza ca dAnavAH daivataira apya avadhyAsa te ekena yudhi pAtitAH ॥ 4-44-9 ॥
hk transliteration by Sanscript