Mishnah Berakhot 1:1-2:1
משנה ברכות א׳:א׳-ב׳:א׳
Mishnah Berakhot 1:1-2:1
The morning Shema may be recited from when one can distinguish between sky-blue and white (or according to Rabbi Eliezer, between sky-blue and leek-green), and must be finished by sunrise; Rabbi Yehoshua permits recitation until three hours into the day, and one who recites after the designated time loses nothing and is considered like one reading Torah.
מֵאֵימָתַי קוֹרִין אֶת שְׁמַע בְּשַׁחֲרִית. מִשֶּׁיַּכִּיר בֵּין תְּכֵלֶת לְלָבָן. רַבִּי אֱלִיעֶזֶר אוֹמֵר, בֵּין תְּכֵלֶת לְכַרְתִּי. וְגוֹמְרָהּ עַד הָנֵץ הַחַמָּה. רַבִּי יְהוֹשֻׁעַ אוֹמֵר, עַד שָׁלֹשׁ שָׁעוֹת, שֶׁכֵּן דֶּרֶךְ בְּנֵי מְלָכִים לַעֲמֹד בְּשָׁלֹשׁ שָׁעוֹת. הַקּוֹרֵא מִכָּאן וְאֵילָךְ לֹא הִפְסִיד, כְּאָדָם הַקּוֹרֵא בַתּוֹרָה:
From when does one recite Shema in the morning? From when a person can distinguish between sky-blue [tekhelet] and white. Rabbi Eliezer says: From when one can distinguish between sky-blue and leek-green. And one must finish reciting Shema until the end of the period when you rise, i.e., sunrise, when the sun begins to shine. Rabbi Yehoshua says: One may recite the morning Shema until three hours of the day, which this is still considered when you rise, as that is the habit of kings to rise from their sleep at three hours of the day. While there is a set time frame for the recitation of Shema, one who recites Shema from that time onward loses nothing. Although he does not fulfill the mitzva of reciting of Shema at its appointed time, he is nevertheless considered like one who reads the Torah, and is rewarded accordingly.