אורח חיים ר״צOrach Chayim 290

Se’if 1א׳

יַרְבֶּה בְּפֵרוֹת וּמְגָדִים וּמִינֵי רֵיחַ, כְּדֵי לְהַשְׁלִים מִנְיַן מֵאָה בְּרָכוֹת. הַגָּה: וְאִם רָגִיל בִּשְׁנַת צָהֳרַיִם אַל יְבַטְּלֶנּוּ, כִּי עֹנֶג הוּא לוֹ (טוּר).

On Shabbos, One Should Complete [the Quota] of 100 Blessings [by Reciting Blessings] on Fruits, 2 Seifim: 1. One must amply partake of fruits and sweets, and enjoy various fragrances if he possesses them, in order to reach the sum of 100 blessings. RAMA: If one is accustomed to sleeping during the afternoon during the week, he should not neglect [this practice] on Shabbos, because it is pleasurable for him. (Tur)

Se’if 2ב׳

אַחַר סְעֻדַּת שַׁחֲרִית קוֹבְעִים מִדְרָשׁ לִקְרוֹת בַּנְּבִיאִים וְלִדְרֹשׁ בְּדִבְרֵי אַגָּדָה, וְאָסוּר לִקְבֹּעַ סְעֻדָּה בְּאוֹתָהּ שָׁעָה. הַגָּה: וּפוֹעֲלִים וּבַעֲלֵי בָּתִּים שֶׁאֵינָן עוֹסְקִים בַּתּוֹרָה כָּל יְמֵי שָׁבוּעַ, יַעַסְקוּ יוֹתֵר בַּתּוֹרָה בְּשַׁבָּת מִתַּלְמִידֵי חֲכָמִים הָעוֹסְקִים בַּתּוֹרָה כָּל יְמֵי הַשָּׁבוּעַ, וְהַתַּלְמִידֵי חֲכָמִים יַמְשִׁיכוּ יוֹתֵר בְּעֹנֶג אֲכִילָה וּשְׁתִיָּה קְצָת, דַּהֲרֵי הֵם מִתְעַנְּגִים בְּלִמּוּדָם כָּל יְמֵי הַשָּׁבוּעַ (בֵּית יוֹסֵף סי' רפ"ח בְּשֵׁם יְרוּשַׁלְמִי).

2. After the morning meal, we establish learning, to read in Prophets and expound on Agadah. And it is forbidden to establish a meal during that time. RAMA: And workers and homeowners who do not toil in Torah during all the days of the week, should toil more in Torah on Shabbos than Torah scholars who toil in Torah all days of the week. And the Torah scholars should engross more in the enjoyment of eating and drinking, a bit, because they pleasure in their studies all days of the week. [Beis Yosef Siman 288 in the name of the Yerushalmi]