Rashi on Leviticus 5:3/רש"י על ויקרא ה׳:ג׳

1בטמאת אדם [OR IF HE TOUCHES] THE UNCLEANNESS OF MAN — This refers to uncleanness resulting from a corpse (i. e. it implies both touching the corpse itself or touching anyone who has come in contact with the corpse) (Sifra, Vayikra Dibbura d'Chovah, Chapter 13 8).

2לכל טמאתו WHATSOEVER UNCLEANNESS OF HIM IT BE — This is intended to include in this law the uncleanness resulting from touching men or women who have a flux (and those in similar physical condition e. g. ‎'וכו‎ יולדת ‎ נדה‎) Sifra, Vayikra Dibbura d'Chovah, Chapter 13 8.

3‎‏אשר יטמא‎ — these apparently redundant words are intended to include in this law one who touches a man who had intercourse with a ה‎‏נד and has not yet immersed himself (cf. Leviticus 15:24) (Sifra, Vayikra Dibbura d'Chovah, Chapter 13 8).

4בה — is intended to include in this law one who swallows the carrion of a clean bird (Sifra, Vayikra Dibbura d'Chovah, Chapter 13 8).

5והוא ידע … ‎ונעלם AND IT WAS HIDDEN [FROM HIM], BUT HE KNOWETH afterwards) that he had forgotten his state of uncleanness.

6ואשם AND HAD INCURRED GUILT by eating sacred food or by entering the Sanctuary in this state.