pathi-on the way; pragrahinam-who was managing the reins of the horses; kamsam-unto Kamsa; abhasya-addressing; aha-said; a-sarira-vak-a voice coming from someone whose body was invisible; asyah-of this girl (Devaki); tvam-you; astamah-the eighth; garbhah-pregnancy; hanta-killer; yam-her whom; vahase-you are carrying; abudha-you foolish rascal.
While Kamsa, controlling the reins of the horses, was driving the chariot along the way, an unembodied voice addressed him, "You foolish rascal, the eighth child of the woman you are carrying will kill you!"