(ה) וַיִּפְתַּ֨ח עֶזְרָ֤א הַסֵּ֙פֶר֙ לְעֵינֵ֣י כׇל־הָעָ֔ם כִּֽי־מֵעַ֥ל כׇּל־הָעָ֖ם הָיָ֑ה וּכְפִתְח֖וֹ עָֽמְד֥וּ כׇל־הָעָֽם׃ (ו) וַיְבָ֣רֶךְ עֶזְרָ֔א אֶת־יקוק הָאֱלֹקִ֖ים הַגָּד֑וֹל וַיַּֽעֲנ֨וּ כׇל־הָעָ֜ם אָמֵ֤ן ׀ אָמֵן֙ בְּמֹ֣עַל יְדֵיהֶ֔ם וַיִּקְּד֧וּ וַיִּֽשְׁתַּחֲו֛וּ לַיקוק אַפַּ֥יִם אָֽרְצָה׃ (ז) וְיֵשׁ֡וּעַ וּבָנִ֡י וְשֵׁרֵ֥בְיָ֣ה ׀ יָמִ֡ין עַקּ֡וּב שַׁבְּתַ֣י ׀ הֽוֹדִיָּ֡ה מַעֲשֵׂיָ֡ה קְלִיטָ֣א עֲזַרְיָה֩ יוֹזָבָ֨ד חָנָ֤ן פְּלָאיָה֙ וְהַלְוִיִּ֔ם מְבִינִ֥ים אֶת־הָעָ֖ם לַתּוֹרָ֑ה וְהָעָ֖ם עַל־עׇמְדָֽם׃ (ח) וַֽיִּקְרְא֥וּ בַסֵּ֛פֶר בְּתוֹרַ֥ת הָאֱלֹקִ֖ים מְפֹרָ֑שׁ וְשׂ֣וֹם שֶׂ֔כֶל וַיָּבִ֖ינוּ בַּמִּקְרָֽא׃ {פ}
Ezra ordained that [the Torah] should be read during the Minchah service on the Sabbath, because of the shopkeepers. He also ordained that on Mondays and Thursdays, three people should read [from the Torah], and that they should read no fewer than ten verses.
[When] beginning a passage from the Torah, [one should read] at least three verses, and one should not conclude less than three verses from the conclusion of a passage. Each reader should not read fewer than three verses.
Blessed are You, God, our Lord, King of the universe, who has chosen us from among all the nations and given us His Torah. Blessed are You, God, the Giver of the Torah.
All the people respond: "Amen." Afterwards, he reads until he completes the reading, rolls the scroll [closed] and recites the blessing:
Blessed are You, God, our Lord, King of the universe, who has given us His Torah, the Torah of truth, and implanted eternal life in our midst. Blessed are You, God, the Giver of the Torah.
[When the chazan reads from the Torah,] another person should stand with him while he reads, just as the chazan stands together with the other readers.
He should not [begin] reading the haftarah until the Torah scroll has been rolled closed. He should not read fewer than twenty-one verses [as the haftarah]. However, if a concept is completed in fewer [verses] than that, he need not add more. If he read only ten verses, but the haftarah is translated, it is sufficient even if the concept is not completed.
[When reading] from the prophets, one reads and even two may translate. One may skip from one concept to another. However, one should not skip from one prophet to another, except among the twelve prophets. Furthermore, [even within a book from a single prophet,] one should not skip from the conclusion of the book until its beginning. Whenever one skips, one should not wait longer than it takes the translator to complete his translation.
On Rashei Chadashim and on Chol Hamo'ed, four people [are called to read [from the Torah]. On the Sabbath and Yom Kippur during the Minchah service, on Mondays and Thursdays throughout the entire year, on Chanukah and Purim in the morning service, and on fast days in the morning and Minchah services three people [are called to] read [from the Torah]. This number may not be reduced, nor may it may be increased.
Hagbaah - https://hakirah.org/Vol15Ron.pdf
In accordance with Masekhet Soferim, R. Yosef Karo in the Shulhan Arukh has hagbaha taking place before the Torah reading, the universal custom in Talmudic times.4 R. Moshe Isserles adds that the Ashkenazic custom is to do hagbaha after the Torah reading, even though the early Ashkenazic work Kol Bo, quoting Masekhet Soferim, indicates that hagbaha is done before the reading.
R. Chaim Benvenisti (1603–1673), an important Turkish halakhist, explains in his book Sha’ayarei Knesset ha-Gedolah that the Ashkenazic custom originated because uneducated people thought that seeing the Torah at hagbaha was more important than hearing the Torah reading, so they would walk out of the synagogue right after hagbaha. By postponing hagbaha, people would leave only after the Torah reading.
