Rashi on Leviticus 17:9/רש"י על ויקרא י״ז:ט׳

1ונכרת [THAT MAN] SHALL BE CUT OFF — his offspring are cut off (die out) and his own life-time (lit., his days) is shortened (cf. Rashi and Tos. Shabbat 25a; Tos. Yevamot 2a).