Rashi on Leviticus 24:17/רש"י על ויקרא כ״ד:י״ז

1ואיש כי יכה AND HE THAT KILLETH [ANY MAN SHALL SURELY BE PUT TO DEATH] — Because it is said (Exodus 21:12) “Whosoever smiteth a man so that he die [shall surely be put to death]” I might say that I have here only the law that if one kills a man he is punishable with death; whence, however, do I know that this is also the case if he kills a woman or a child? Because Scripture states here: “[and he that killeth] any person (more lit., the soul of any human being)” (Sifra, Emor, Chapter 20 1; cf. Rashi on Exodus 21:12).