בַּלַּ֣יְלָה הַה֔וּא נָדְדָ֖ה שְׁנַ֣ת הַמֶּ֑לֶךְ וַיֹּ֗אמֶר לְהָבִ֞יא אֶת־סֵ֤פֶר הַזִּכְרֹנוֹת֙ דִּבְרֵ֣י הַיָּמִ֔ים וַיִּהְי֥וּ נִקְרָאִ֖ים לִפְנֵ֥י הַמֶּֽלֶךְ׃
AQUELLA noche se le fué el sueño al rey, y dijo que le trajesen el libro de las memorias de las cosas de los tiempos: y leyéronlas delante del rey.
Tosefta Megillah
The obligation of the Megillah [is to read it] from the beginning until the end, the words of Rabbi Meir. Rabbi Yehuda says, from [the words] "A Jewish man" (Esther 2:5). Rabbi Yosei says, from [the words], "After these events" (Esther 3:1). Rabbi Shimon ben Elazar, from "That night" (Esther 6:1). But all agree that [regardless of the point at which one started], the obligation is to complete [the Megillah] until the very end.