א קְרָאָהּ סֵרוּגִין, דְּהַיְנוּ שֶׁהִתְחִיל לִקְרוֹת, וְהִפְסִיק בֵּין בִּשְׁתִיקָה בֵּין בְּדִבּוּר וְחָזַר וּגְמָרָהּ, אֲפִלּוּ שָׁהָה כְּדֵי לִגְמֹר אֶת כֻּלָּהּ, יָצָא, אֲפִלּוּ הָיָה הַהֶפְסֵק מֵחֲמַת אֹנֶס: הַגָּה: וְיֵשׁ אוֹמְרִים דְּאִם הָיָה אָנוּס וְהִפְסִיק כְּדֵי לִגְמֹר אֶת כֻּלָּהּ, חוֹזֵר לְרֹאשׁ (תוס' וְהָרֹא"שׁ פֶּרֶק מ"ש וְהַטּוּר), וְהָכֵי נָהוּג, וּמְשַׁעֲרִין עִנְיַן הַשְּׁהִיָּה לְפִי הַקּוֹרֵא, וְלֹא לְפִי רֹב בְּנֵי אָדָם (רַשְׁבָּ"א ר"פ הָיָה קוֹרֵא) וְכֵן הוּא לְקַמָּן סִימָן ק"ד.
1 [The Laws of] One Who Entered a Synagogue and Found the Congregation Reciting the Recitation of the Sh'ma or Who Interrupted at the Time of the Recitation, Containing 3 S'ifim One who recited it discontinuously, that is, that they began to recite and [then] paused, whether through silence or through speaking, and [then] returned and finished it, even if they tarried [the amount of time it would take] to complete all of it, they have fulfilled [their obligation], even if the pause is due to an unavoidable circumstance. Rema: And there are those who say that if one had an unavoidable circumstance and paused [the amount of time it would take] to complete all of it, they return to the beginning (Tosafot and the Rosh, chapter Mi She-meito(?) (Brakhot 3), and the Tur). And this is the custom. And we calculate the matter of tarrying (ie. the amount of time that he paused) according to the one reciting [the Sh'ma] and not according the majority of people. (Rashba, beginning of chapter Hayah Korei (B'rakhot 2) And thus it is [described] below in Siman 104.