What are the (otherwise superfluous) words "ha'Kerovah eilav" coming to teach us ?
Rashi: They include an Arusah (a betrothed woman). 1
Targum Yonasan: "ha'Kerovah eilav" comes to preclude an Arusah, and "asher Lo Haysah le'Ish, a Nesu'ah. 2
Yevamos, 60a: "ha'Kerovah" comes to include his sister who was divorced after the betrothal, and "Eilav", one who is a Bogeres. 3
What are the implications of "asher Lo Haysah le'Ish"?
Rashi: It means that she did not have relations with a man. 1
Riva citing R. Moshe of Kutzi: It includes a Bogeres (whose Besulim fell out) and a Mukas EItz (her Besulim were lost through an injury). 2
Riva (citing R. Elyakim): It excludes someone who had Bi'ah Lo ke'Darkah, Even though she is a virgin in the place of Besulim.
Why is a Kohen not permitted to render himself Tamei fo his married sister?
Onayim la'Torah (citing the Ba'alei Tosfos): Refer to 21:3:151:1*). 1
A Kohen is nevertheless permitted to render himself Tamei for his married mother and daughter - in spite of the fact that they have a husband to burt them - on the closeness of a man to his mother and his daughter, which is on a much higher plane than that of a brother to a sister. See Oznayim la'Torah.
Why does the Torah add the (otherwise superfluous) words "lah Yitama"?
Rashi: To teach us that burying the above-mentioned seven relatives is not just permitted, but a Mitzvah. 1
Moshav Zekenim: To teach us that, when he becomes Tamei for his sister 2 , he is not permitted to say that since he is already rendering himself Tamei, he may as well also render himself Tamei for a Meis that he is not commanded to bury. 3
Yevamos, 60a: To preclude limbs of a sister if the body is not complete. 4
Sifra: It implies that the Kohen is ponly Metamei for a Vaday but not for a Safek. 5
Rashi (in Bava Metzi'a, 18a, based on Zevachim, 100a): And if he refuses, Beis-Din force him to comply. See also Torah Temimah, note 25.
Moshav Zekenim: The same applies when he is Metamei for his father (and other relatives, or a Meis Mitzvah. - PF).
See Torah Temimah, note 27.
See Torah Temimah, note 26.
QUESTIONS ON RASHI
Rashi writes that "ha'Kerovah eilav" includes an Arusah. Does he mean that an Arus is Metamei for his Arusah, or her brother? And what is the source to say so?
Moshav Zekenim (citing Yevamos 29b): An Arus is not Metamei for his Arusah. 1 Rather, her brother is Metamei for her, for he is closer to her than the Arus.
Sifsei Chachamim: If the brother was forbidden, the Torah would not need to write "ha'Kerovah Eilav." We would already know this from "asher Lo Haysah le'Ish", since 'Havayah' implies Kidushin.
Moshav Zekenim and Da'as Zekenim and Hadar Zekenim (on Pasuk 2): Once she is married, her husband, who is closer to her (a man and his wife are called "Basar Echad" - Bereishis 2:24), buries her, even if he is a Kohen.
