Megillah 2:2 - 2:3

סירוגין – that he reads a bit and then pauses, and goes back and reads a bit [more] and pauses, even if he paused more than it would take in order to read all of it, he has fulfilled [his religious obligation].

היה כותבה – such as he writes the entire [Megillah], and sets it before him and reads verse-by-verse in the Megillah placed before him, and he writes it, but he does not fulfill his religious obligation other than when he reads the Megillah when it completely written.

אם כיון לבו – to fulfill [his religious obligation] through this reading.

בסם – it is root of grass that is called SAHM (a paint).

בסקרא – a stone that we paint red with it.

קומוס – a kind of resin/gum and in the foreign language [it is called] GUMMA.

קנקנתום – (vitriol – used an ingredient of shoe-black and of ink) – in the foreign language [it is called] DRIOLAV, and in Arabic ZA’AG.

נייר – made from grasses through a glue and we write upon it.

דפתרא – a leather hide in which its preparation was not completed , which is preserved in salt (i.e., pickled) and floured but not prepared with gall-nut juice.

על הספר – on the parchment.

בן עיר – whose time [for reading the Megillah] is on the fourteenth [of Adar].

שהלך לכרך – whose time [for reading the Megillah] is on the fifteenth [of Adar].

אם עתיד לחזור למקומו – if he is dweller of a walled-city [from the time of Joshua, son of Nwho went to a city and designated in the future (i.e., “intends”) to leave from the city on the night of the fourteenth [of Adar] before the crack of dawn. Even though was in the city at night, since he would not be in the city during the day time, this is not even a person who is residing in an open place for one day (see Talmud Megillah 19a). Therefore, he reads [the Megillah] like his place on the fifteenth [of Adar]. But if he does not designate in the future to leave from there that evening, for now, he is like a person who is residing in an open place for that one day (i.e., Purim). Even though he designates in the future (i.e., “intends”) to return on the morrow or on another day, he is called a person who is residing in an open place and reads with them. And the same law applies for a city dweller who went to a walled-city [from the time of Joshua, son of Nun], and he designated in the future (i.e., “intends”) to return on the evening of the fifteenth, he is not considered to be someone in a walled-city [from the time of Joshua, son of Nun] for that one day, and reads [the Megillah] on the fourteenth [of Adar]. And even though he is in a walled-city [from the time of Joshua, son of Nun], but if he has not designated in the future (i.e., “intends”) to return on the night of the fifteenth [of Adar], he does not read [the Megillah] on the fourteenth [of Adar] but rather, delays and reads with them (i.e., dwellers of walled-cities) [on the fifteenth of Adar], and this is how our Mishnah is explained in the Gemara.

ר' מאיר אומר: כולה – And the Halakha is according to Rabbi Meir.