(Mishnah): We may not use anything from a tree for a wick, except for linen;

Anything that comes from a tree does not receive Tum'as Ohel (if it was an Ohel over a Mes), except for linen.

A wick made of a garment that was folded but not singed - it is Tamei [if it is three fingers by three fingers], and one may not light with it;

R. Akiva says, it is Tahor, and one may light with it.

(Gemara - R. Shimon bar Rav Yitzchak): It says "Leha'alos Ner Tamid''- Chachamim gauged that nothing [from a tree] makes a flame [that goes up] except for linen.

(Beraisa - R. Shimon ben Elazar): Anything from a tree, the law of three by three [fingers, that it is Mekabel Tum'ah] does not apply to it, and one may use it for Sechach, except for linen.

(R. Yosi): They made it like very thick garments;

(Mishnah): Very thick and very soft garments, the law of three by three [fingers] does not apply to them.

(R. Lazar): They learned from the Mishkan. It says "Es ha'Mishkan Ta'aseh Eser Yeri'os Shesh Mashzar'', and it says "Pa'arei Pishtim Yihyu Al Rosham'' - you learn Shesh (said about the curtains) from Shesh (of the turbans), and Shesh (of the turbans), from (Pa'arei of the turbans), and Pa'arei (of the turbans), from Pa'arei [in Yechezkel, that they are linen].

Question (R. Elazar): May one (i.e. did they) make the Ohel Mo'ed from the hide of a Tamei animal?

Question: Why does he ask? It says "v'Oros Techashim''! (This is not one of the Tahor species listed.)

Answer: [He asks because] R. Yehudah, R. Nechemyah and Rabanan [argued about this]. R. Yehudah says, [Techashim] are called Tainin due to their color [of their skin. Tainun is the Targum of Techeles in Megilas Esther - PNEI MEIR.] R. Nechemyah says, they were Galaktinim (a Tamei animal). Rabanan say, it was a Tahor species of Chayah, and it grew in the Midbar.

[Rabanan's opinion] is like R. Lazar bei R. Yosi said citing R. Avahu citing Reish Lakish citing R. Meir "Hash-m created a Tahor kind of Chayah for Moshe in the Midbar. Once he used it for the Mishkan, it was hidden.''

(R. Avun): Its name was Keresh.

(Beraisa - R. Hoshayah): It had one horn - v'Sitav la'Shem mi'Shor Par Makrin Mafris'' - it is written Makrin [without a Yud, to teach only one horn. SICHAS CHULIN (Chulin 59b) - it seems that Keresh is the giraffe. It is Tahor, and has a horn-like protrusion in the middle of its forehead.]