Refuted Explanation: Rashi explains, in Perek Sh'tei ha'Lechem (Menachos, Daf 100a) that it is referring to the oil for the Menorah.

Refutation: This is not correct however, because what Kedushah is applicable there, seeing as it does not have Kedushas K'li (See Tzon Kodshim & Olas Sh'lomoh).

Authentic Explanation: It therefore seems that the only thing that can be brought by night is the Minchas Nesachim ...

Implied Question: And that explains why the Gemara does not answer here 'Perhaps it is not Kadosh to bring on the Mizbe'ach but it is Kadosh to become Pasul' ...

Source: As the Gemara concludes there in Perek Sh'tei ha'Lechem (ibid.) ...

Answer: Because it relies on the statement 'Kol ha'Kareiv ba'Laylah' and the only Korban that can be brought in the night is a Minchas Nesachim.

Implied Question: In fact, it could have asked from it here directly, since it states 've'Chol ha'Kareiv ba'Laylah' - and this can only apply to Minchas Nesachim (as Tosfos just explained) ...

Answer: Only the Gemara is trying to ask even according to what it initially thought there in Perek Sh'tei ha'Lechem.

Question: How come that we recite chapters of Tehilim by heart?

Answer: One need only take this ruling to heart with regard to what is written in the Chumash.

Question: But how can we then recite 'va'Yosha' (the Shirah) and Keri'as Sh'ma (by heart)?

Answer: One only needs to take it to heart there where one is rendering others Yotzei their obligation (See Hagahos ha'G'ra).

Implied Question: It could have answered that it is a Machlokes Tana'im ...

Source: As in the last Perek of Zevachim (Daf 117a) the Rabbanan argue with Rebbi Meir, and the Gemara concludes there that the difference between them is regarding Menachos and Neziros.

Answer: Some Sefarim have the text 'The author of one is Rebbi Meir, the author of the other, the Rabbanan'.

Applying Statement: By the same token, one needs to eras it from the above-mentioned Gemara in the last Perek of Zevachim (117b - See Sugya there) when it says 'The difference between them is regarding Menachos and Neziros.

Implied Question: And according to the Rabbanan, who argue with Rebbi Meir who holds that 'a Korban Nazir is not considered a voluntary offering ...

Answer: We will have to say that Avshalom only went to Chevron to bring lambs - but to sacrifice them in Giv'on.

Introduction to Question: But according to Rashi's explanation in the last Perek of Zevachim (Ibid.) - that the Rabbanan of Rebbi Meir and the latter Rabbanan (there), who say that 'in both places they only brought for a Yachid Olos and Shelamim exclusively' ...

Question: The Kashya remains how Avshalom could state "I will go and pay the Neder that I made ... ", when Nezirus according to the Rabbanan is not voluntary, and in can therefore not brought in either place?

Explanation #2: We must therefore split up the Tana'im - in that the Rabbanan of Rebbi Meir do hold like the latter Rabbanan ...

Explanation #2 (cont.): But like Rebbi Yehudah, who holds that on the large Bamah, one could bring even obligatory Korbanos ...

Explanation #2 (cont.): Whereas Rebbi Meir, who says that Nezirus is voluntary, can hold like the latter Rabbanan in Zevachim, who prohibit bringing on behalf of a Yachid anything other than Olos and Shelamim.

Support for Explanation #1: The run of the Suya however, implies like Rashi.

Introduction to Question: According t Rebbi Shimon, who says there (in the last Perek of Zevachim - Ibid.) that 'Also the Tzibur only brought there Pesachim and obligatory Korbanos that had a fixed time period' ...

Introduction to Question: And Rashi explains that, when the Gemara says in Perek Kol Sha'ah (Pesachim, Daf 38b) 'This means to say that Chalos Todah and Rekikei (wafers) Nazir could be eaten in Nov and Giv'on' - it does not go like Rebbi Shimon ...

Question: In that case, how could Avshalom declare "I will go and fulfill my Neder"?

Answer: Tosfos Rebbe ha'Rav M. (?) answers that Rebbi Shimon follows his own reasoning in Maseches Nazir (Daf 46b), where he says 'If he shaved on Shalmei Nedavah , he is Yotzei', and 'If he said that he will shave on a hundred Olos, then he must bring a hundred Olos' ...

Answer (cont.): If so, it is possible that Avshalom vowed to bring Olos Nedavah, and something that is volunteered can be brought on the Bamah according to all opinions, and it was on that that Avshalom wanted to shave.