This is the second participial law. Literally the Hebrew says “And the striker of his father and [or] his mother dying he shall die.” The word for “striker” is identical with verse 12. The context clearly indicates that or is the intended meaning rather than “and.” Shall be put to death is the emphatic form explained at verse 12.

Quoted with permission from Osborn, Noel D. and Hatton, Howard A. A Handbook on Exodus. (UBS Helps for Translators). New York: UBS, 1999. For this and other handbooks for translators see here .