Inference: This is forbidden on Yom Tov, but on Chol one may burn Shemen Sereifah [and benefit from this]!

Question: What is the reason?

Answer (Rav): Just like it is a Mitzvah to burn Tamei Kodshim, it is a Mitzvah to burn Tamei Terumah - the Torah permitted to benefit at the time of burning [Terumah].

Question: Where does the Torah permit this?

Answer #1: We learn from Rav Nachman:

(Rav Nachman): "...Mishmeres Terumosai" - the verse discusses two Terumos, Tahor and Tamei;

It says "Lecha" - they are yours (the Kohen's - Tamei Terumah may not be eaten, but) you may burn it and cook over the fire.

Answer #2: We learn from R. Avahu:

(R. Avahu): "V'Lo Vi'arti Mimenu b'Tamei" - you may not consume Ma'aser b'Tum'ah (eat it when it or you are Tamei, or burn it if it is Tamei), but you may burn [and benefit from] Tamei Terumah oil.

Question: Why don't we say, you may not burn Tamei Ma'aser, but you may burn [and benefit from] Tamei Kodesh oil?

Answer: A Kal v'Chomer refutes this:

Ma'aser is lenient, yet it may not be burned in Tumah - Kodesh is stringent, all the more so!

Objection: If so, the same applies to Terumah!

Answer: "Mimenu" excludes [and permits Terumah].

Suggestion: Perhaps "Mimenu" excludes Kodesh!

Rejection: This is unreasonable, for Kodesh has many stringencies:

It can become Pigul (if a Korban was offered with intent to eat or offer it after the allotted time), or Nosar, it is called Korban, Me'ilah applies to it, a Tamei [person] who eats it is Chayav Kares, it is forbidden to an Onen.

Question: Rather, we should forbid Terumah, since it has these stringencies:

A Tamei who eats it is Chayav Misah bi'Dei Shamayim, a Zar (non-Kohen) who eats it b'Shogeg must add a fifth when paying for what he ate, it cannot be redeemed, it is forbidden to a Zar.

Answer #1: Kodesh has more stringencies.

Answer #2: Kares is more stringent than Misah bi'Dei Shamayim.

Answer #3 (Rav Nachman bar Yitzchak): "Titen Lo" (give [Tahor] Terumah which the Kohen himself can eat), do not give [Tamei Terumah, which will be fuel] for his fire;

This implies that the Kohen may use it for [fuel] for his fire.

(Mishnah - R. Yishmael): One may not light [with tar, it is dishonorable to Shabbos].

Question: What is the reason?

Answer (Rava): It smells bad - we decree, lest he will leave the room [and be in dark on Shabbos].

Question (Abaye): What is wrong if he leaves?

Answer (Rava): I hold that Ner Shabbos is obligatory:

(Rav): Ner Shabbos is obligatory; washing the hands and feet in hot water on Shabbos night is Reshus (optional).

(Rava): I say that washing is a Mitzvah.

Question: What is the Mitzvah?

Answer: Rav Yehudah taught, on Shabbos night they would bring to R. Yehudah a basin of hot water, he would wash his face, hands and feet, cloak himself and sit in decorated linen garments [with Tzitzis, including woolen Techeiles], he resembled an angel.

His Talmidim hid the corners of their garments [of linen, they did not have Tzitzis].

R. Yehudah: I taught to you - Beis Shamai exempt linen garments from Tzitzis and Beis Hillel obligate, and the Halachah follows Beis Hillel! (Tosfos - Beis Shamai decree, lest one put Techeiles on a night garment, which is exempt from Tzitzis, he transgresses Sha'atnez; Rashi - Beis Shamai hold that mid'Oraisa, the Mitzvah of Tzitzis does not override Sha'atnez).

His Talmidim held that Chachamim decreed to exempt linen garments, on account of a night garment [even according to Beis Hillel].

Question: What does it mean "Va'Tiznach mi'Shalom Nafshi (I had no Shalom)"?

Answer (R. Avahu): This is [not having] Ner Shabbos.

Question: What does it mean "Nashisi Tovah (I forgot what is good)"?

Answer #1 (R. Yirmeyah): This is a bathhouse.

Answer #2 (R. Yochanan): This is washing hands and feet in hot water.

Answer #3 (Rav Nachman bar Yitzchak): This is a nice bed and nice Kelim on it.

Answer #4 (R. Aba): This is a spread bed and a wife adorned (Rashba - in her deeds) for a Chacham.

(Beraisa - R. Meir): A wealthy person is one who enjoys his wealth (Maharsha; Rashi - he is happy with what he has);

R. Tarfon says, it is one who as 100 vineyards, 100 field and 100 slaves to work them. (Maharsha - one who gathers wealth to be called Ashir will feel that he needs all this - and still, he will not be satisfied with it);

R. Akiva says, it is one who has a wife whose deeds are nice;

R. Yosi says, it is one who has a Beis ha'Kisei near his table