5 added 132 characters in body
source | link

In short, it seems to be a machloket, but most mefarshim who address this issue hold that in general a kohen cannot become tamei forto fulfill kanna'im pog'in bo:

The Rosh (Peirush ha-Rosh al ha-Torah, Parshat Pinchas) asks this question--how could Pinchas make himself tamei if he was a kohen--and gives 2 answers: Either Pinchas wasn't yet a kohen, or he didn't become tamei, (because they didn't die immediately). The Arukh la-Ner (Sanhedrin 82a) says that Pinchas knew that he wouldn't become tamei, since Moshe told him to perform this action. The Panim Yafot (by the author of the Hafla'ah, Bamidbar 25:7) says that the reason Moshe did not perform the action himself is because he had the status of a kohen gadol, and therefore it wouldn't be permitted for him to become tamei, but Pinchas wasn't yet a kohen. The Kli Chemdah says that Pinchas was allowed to kill Zimri even though he was a kohen because he was saving all of klal yisrael. The Rogachover (Tzofnat Pane'ach Issurei Biah 12:4) says that the reason the chachamim objected to Pinchas's actions (according to the Yerushalmi) was because Pinchas was a kohen, and others could have done it. According to these approaches, in general it would be assur for a kohen to become tamei in such a case.

However, the Chavatzelet ha-Sharon (Bamidbar, p. 805) cites the Rogachover (Teshuvot Tzofnat Pane'ach, no. 235) who states that if bo'el aramitthe halachah of bo'el aramit kanna'im pog'in bo is considered a chiddush (and not a chiyuvi.e., something which should be assur but is nevertheless allowed), then it would be mutarallowed for a kohen as well, and the Radak (Shmuel 2:23:20) who writes that Pinchas did become tamei, even though he was a kohen, but that it was mutar because of the mitzvah. According to these (minority) sources, it may be mutar for a kohen as well.

In short, it seems to be a machloket, but most mefarshim who address this issue hold that a kohen cannot become tamei for kanna'im pog'in bo:

The Rosh (Peirush ha-Rosh al ha-Torah, Parshat Pinchas) asks this question--how could Pinchas make himself tamei if he was a kohen--and gives 2 answers: Either Pinchas wasn't yet a kohen, or he didn't become tamei, (because they didn't die immediately). The Arukh la-Ner (Sanhedrin 82a) says that Pinchas knew that he wouldn't become tamei, since Moshe told him to perform this action. The Panim Yafot (by the author of the Hafla'ah, Bamidbar 25:7) says that the reason Moshe did not perform the action himself is because he had the status of a kohen gadol, and therefore it wouldn't be permitted for him to become tamei, but Pinchas wasn't yet a kohen. The Kli Chemdah says that Pinchas was allowed to kill Zimri even though he was a kohen because he was saving all of klal yisrael. The Rogachover (Tzofnat Pane'ach Issurei Biah 12:4) says that the reason the chachamim objected to Pinchas's actions (according to the Yerushalmi) was because Pinchas was a kohen, and others could have done it. According to these approaches, in general it would be assur for a kohen to become tamei in such a case.

However, the Chavatzelet ha-Sharon (Bamidbar p. 805) cites the Rogachover (Teshuvot Tzofnat Pane'ach, no. 235) that if bo'el aramit is considered a chiddush (and not a chiyuv), then it would be mutar for a kohen as well, and the Radak (Shmuel 2:23:20) that Pinchas did become tamei, even though he was a kohen, but it was mutar because of the mitzvah. According to these sources, it may be mutar for a kohen as well.

In short, it seems to be a machloket, but most mefarshim who address this issue hold that in general a kohen cannot become tamei to fulfill kanna'im pog'in bo:

The Rosh (Peirush ha-Rosh al ha-Torah, Parshat Pinchas) asks this question--how could Pinchas make himself tamei if he was a kohen--and gives 2 answers: Either Pinchas wasn't yet a kohen, or he didn't become tamei, (because they didn't die immediately). The Arukh la-Ner (Sanhedrin 82a) says that Pinchas knew that he wouldn't become tamei, since Moshe told him to perform this action. The Panim Yafot (by the author of the Hafla'ah, Bamidbar 25:7) says that the reason Moshe did not perform the action himself is because he had the status of a kohen gadol, and therefore it wouldn't be permitted for him to become tamei, but Pinchas wasn't yet a kohen. The Kli Chemdah says that Pinchas was allowed to kill Zimri even though he was a kohen because he was saving all of klal yisrael. The Rogachover (Tzofnat Pane'ach Issurei Biah 12:4) says that the reason the chachamim objected to Pinchas's actions (according to the Yerushalmi) was because Pinchas was a kohen, and others could have done it. According to these approaches, in general it would be assur for a kohen to become tamei in such a case.

However, Chavatzelet ha-Sharon (Bamidbar, p. 805) cites the Rogachover (Teshuvot Tzofnat Pane'ach, no. 235) who states that if the halachah of bo'el aramit kanna'im pog'in bo is a chiddush (i.e., something which should be assur but is nevertheless allowed), then it would be allowed for a kohen as well, and the Radak (Shmuel 2:23:20) who writes that Pinchas did become tamei, even though he was a kohen, but that it was mutar because of the mitzvah. According to these (minority) sources, it may be mutar for a kohen as well.

4 added 148 characters in body
source | link

In short, it seems to be a machloket, but most mefarshim who address this issue hold that a kohen cannot become tamei for kanna'im pog'in bo:

The Rosh (Peirush ha-Rosh al ha-Torah, Parshat Pinchas) asks this question--how could Pinchas make himself tamei if he was a kohen--and gives 2 answers: Either Pinchas wasn't yet a kohen, or he didn't become tamei, (because they didn't die immediately). The Arukh la-Ner (Sanhedrin 82a) says that Pinchas knew that he wouldn't become tamei, since Moshe told him to perform this action. The Panim Yafot (by the author of the Hafla'ah, Bamidbar 25:7) says that the reason Moshe did not perform the action himself is because he had the status of a kohen gadol, and therefore it wouldn't be permitted for him to become tamei, but Pinchas wasn't yet a kohen. The Kli Chemdah says that Pinchas was allowed to kill Zimri even though he was a kohen because he was saving all of klal yisrael. The Rogachover (Tzofnat Pane'ach Issurei Biah 12:4) says that the reason the chachamim objected to Pinchas's actions (according to the Yerushalmi) was because Pinchas was a kohen, and others could have done it. According to these approaches, in general it would be assur for a kohen to become tamei in such a case.

However, the Chavatzelet ha-Sharon (Bamidbar p. 805) cites the Rogachover (Teshuvot Tzofnat Pane'ach, no. 235) says that if bo'el aramisaramit is considered a chiddush (and not a chiyuv), then it would be mutar for a kohen as well. The, and the Radak (Shmuel 2:23:20) says that Pinchas did become tamei, even though he was a kohen, but it was mutar because of the mitzvah. This likewise implies thatAccording to these sources, it wouldmay be permittedmutar for a kohen to become tamei. [Most of these sources are drawn from the sefer Chavatzelet ha-Sharon, Bamidbar p. 805as well.] 

In short, it seems to be a machloket, but most mefarshim who address this issue hold that a kohen cannot become tamei for kanna'im pog'in bo:

The Rosh (Peirush ha-Rosh al ha-Torah, Parshat Pinchas) asks this question--how could Pinchas make himself tamei if he was a kohen--and gives 2 answers: Either Pinchas wasn't yet a kohen, or he didn't become tamei, (because they didn't die immediately). The Arukh la-Ner (Sanhedrin 82a) says that Pinchas knew that he wouldn't become tamei, since Moshe told him to perform this action. The Panim Yafot (by the author of the Hafla'ah, Bamidbar 25:7) says that the reason Moshe did not perform the action himself is because he had the status of a kohen gadol, and therefore it wouldn't be permitted for him to become tamei, but Pinchas wasn't yet a kohen. The Kli Chemdah says that Pinchas was allowed to kill Zimri even though he was a kohen because he was saving all of klal yisrael. According to these approaches, in general it would be assur for a kohen to become tamei in such a case.

However, the Rogachover (Teshuvot Tzofnat Pane'ach, no. 235) says that if bo'el aramis is considered a chiddush (and not a chiyuv), then it would be mutar for a kohen as well. The Radak (Shmuel 2:23:20) says that Pinchas did become tamei, even though he was a kohen, but it was mutar because of the mitzvah. This likewise implies that it would be permitted for a kohen to become tamei. [Most of these sources are drawn from the sefer Chavatzelet ha-Sharon, Bamidbar p. 805.]

In short, it seems to be a machloket, but most mefarshim who address this issue hold that a kohen cannot become tamei for kanna'im pog'in bo:

The Rosh (Peirush ha-Rosh al ha-Torah, Parshat Pinchas) asks this question--how could Pinchas make himself tamei if he was a kohen--and gives 2 answers: Either Pinchas wasn't yet a kohen, or he didn't become tamei, (because they didn't die immediately). The Arukh la-Ner (Sanhedrin 82a) says that Pinchas knew that he wouldn't become tamei, since Moshe told him to perform this action. The Panim Yafot (by the author of the Hafla'ah, Bamidbar 25:7) says that the reason Moshe did not perform the action himself is because he had the status of a kohen gadol, and therefore it wouldn't be permitted for him to become tamei, but Pinchas wasn't yet a kohen. The Kli Chemdah says that Pinchas was allowed to kill Zimri even though he was a kohen because he was saving all of klal yisrael. The Rogachover (Tzofnat Pane'ach Issurei Biah 12:4) says that the reason the chachamim objected to Pinchas's actions (according to the Yerushalmi) was because Pinchas was a kohen, and others could have done it. According to these approaches, in general it would be assur for a kohen to become tamei in such a case.

However, the Chavatzelet ha-Sharon (Bamidbar p. 805) cites the Rogachover (Teshuvot Tzofnat Pane'ach, no. 235) that if bo'el aramit is considered a chiddush (and not a chiyuv), then it would be mutar for a kohen as well, and the Radak (Shmuel 2:23:20) that Pinchas did become tamei, even though he was a kohen, but it was mutar because of the mitzvah. According to these sources, it may be mutar for a kohen as well. 

3 added 237 characters in body
source | link

In short, it seems to be a machloket, but most mefarshim who address this issue hold that a kohen cannot become tamei for kanna'im pog'in bo:

The Rosh (Peirush ha-Rosh al ha-Torah, Parshat Pinchas) asks this question--how could Pinchas make himself tamei if he was a kohen--and gives 2 answers: Either Pinchas wasn't yet a kohen, or he didn't become tamei, (because they didn't die immediately). The Arukh la-Ner (Sanhedrin 82a) says that Pinchas knew that he wouldn't become tamei, since Moshe told him to perform this action. The Panim Yafot (by the author of the Hafla'ah, Bamidbar 25:7) says that the reason Moshe did not perform the action himself is because he had the status of a kohen gadol, and therefore it wouldn't be permitted for him to become tamei, but Pinchas wasn't yet a kohen. The Kli Chemdah says that Pinchas was allowed to kill Zimri even though he was a kohen because he was saving all of klal yisrael. According to these approaches, in general it would be assur for a kohen to become tamei in such a case.

However, the Rogachover (Teshuvot Tzofnat Pane'ach, no. 235) says that if bo'el aramis is considered a chiddush (and not a chiyuv), then it would be mutar for a kohen as well. The Radak (Shmuel 2:23:20) says that Pinchas did become tamei, even though he was a kohen, but it was mutar because of the mitzvah. [Almost allThis likewise implies that it would be permitted for a kohen to become tamei. [Most of these sources are drawn from the sefer Chavatzelet ha-Sharon, Bamidbar p. 805.]

The Rosh (Peirush ha-Rosh al ha-Torah) asks this question--how could Pinchas make himself tamei if he was a kohen--and gives 2 answers: Either Pinchas wasn't yet a kohen, or he didn't become tamei, (because they didn't die immediately). The Arukh la-Ner (Sanhedrin 82a) says that Pinchas knew that he wouldn't become tamei, since Moshe told him to perform this action. The Panim Yafot (by the author of the Hafla'ah, Bamidbar 25:7) says that the reason Moshe did not perform the action himself is because he had the status of a kohen gadol, and therefore it wouldn't be permitted for him to become tamei, but Pinchas wasn't yet a kohen. The Kli Chemdah says that Pinchas was allowed to kill Zimri even though he was a kohen because he was saving all of klal yisrael. According to these approaches, in general it would be assur for a kohen to become tamei in such a case.

However, the Rogachover (Teshuvot Tzofnat Pane'ach, no. 235) says that if bo'el aramis is considered a chiddush (and not a chiyuv), then it would be mutar for a kohen as well. The Radak (Shmuel 2:23:20) says that Pinchas did become tamei, even though he was a kohen, but it was mutar because of the mitzvah. [Almost all of these sources are drawn from the sefer Chavatzelet ha-Sharon, Bamidbar p. 805.]

In short, it seems to be a machloket, but most mefarshim who address this issue hold that a kohen cannot become tamei for kanna'im pog'in bo:

The Rosh (Peirush ha-Rosh al ha-Torah, Parshat Pinchas) asks this question--how could Pinchas make himself tamei if he was a kohen--and gives 2 answers: Either Pinchas wasn't yet a kohen, or he didn't become tamei, (because they didn't die immediately). The Arukh la-Ner (Sanhedrin 82a) says that Pinchas knew that he wouldn't become tamei, since Moshe told him to perform this action. The Panim Yafot (by the author of the Hafla'ah, Bamidbar 25:7) says that the reason Moshe did not perform the action himself is because he had the status of a kohen gadol, and therefore it wouldn't be permitted for him to become tamei, but Pinchas wasn't yet a kohen. The Kli Chemdah says that Pinchas was allowed to kill Zimri even though he was a kohen because he was saving all of klal yisrael. According to these approaches, in general it would be assur for a kohen to become tamei in such a case.

However, the Rogachover (Teshuvot Tzofnat Pane'ach, no. 235) says that if bo'el aramis is considered a chiddush (and not a chiyuv), then it would be mutar for a kohen as well. The Radak (Shmuel 2:23:20) says that Pinchas did become tamei, even though he was a kohen, but it was mutar because of the mitzvah. This likewise implies that it would be permitted for a kohen to become tamei. [Most of these sources are drawn from the sefer Chavatzelet ha-Sharon, Bamidbar p. 805.]

2 added 130 characters in body
source | link
1
source | link