עוֹנָּה הָאֲמוּרָה בַּתּוֹרָה. לְכָל אִישׁ וְאִישׁ כְּפִי כֹּחוֹ וּכְפִי מְלַאכְתּוֹ. כֵּיצַד. בְּנֵי אָדָם הַבְּרִיאִים וְהָרַכִּים וְהָעֲנֻגִּים שֶׁאֵין לָהֶם מְלָאכָה שֶׁמַּכְשֶׁלֶת כֹּחָן אֶלָּא אוֹכְלִין וְשׁוֹתִין וְיוֹשְׁבִין בְּבָתֵּיהֶן עוֹנָתָן בְּכָל לַיְלָה. הַפּוֹעֲלִין כְּגוֹן הַחַיָּטִין וְהָאוֹרְגִין וְהַבּוֹנִים וְכַיּוֹצֵא בָּהֶן. אִם הָיְתָה מְלַאכְתָּן בָּעִיר עוֹנָתָן פַּעֲמַיִם בְּשַׁבָּת. וְאִם הָיְתָה מְלַאכְתָּן בְּעִיר אַחֶרֶת עוֹנָתָן פַּעַם אַחַת בְּשַׁבָּת. הַחַמָּרִים פַּעַם אַחַת בְּשַׁבָּת. וְהַגַּמָּלִים אַחַת לִשְׁלֹשִׁים יוֹם. וְהַמַּלָּחִין אַחַת לְשִׁשָּׁה חֳדָשִׁים. תַּלְמִידֵי חֲכָמִים עוֹנָתָן פַּעַם אַחַת בְּשַׁבָּת מִפְּנֵי שֶׁתַּלְמוּד תּוֹרָה מַתִּישׁ כֹּחָן וְדֶרֶךְ תַּלְמִידֵי חֲכָמִים לְשַׁמֵּשׁ מִטָּתָן מִלֵּילֵי שַׁבָּת לְלֵילֵי שַׁבָּת:
The [obligation of] conjugal rights as prescribed by the Torah [is individual in nature], depending on the strength of each particular man and the [type of] work that he performs. What is implied? Healthy men who are pampered and indulged, and who are not employed in labor that weakens their strength - but rather eat, drink and spend [the majority of their day] at home - should fulfill their conjugal duties every night. [The following rules apply to] workers - e.g., tailors, weavers, construction workers and the like. If they work in the city [in which they live], they should fulfill their conjugal duties twice a week. If they work in another city, they should fulfill their conjugal duties once a week. Donkey-drivers should fulfill their conjugal duties once a week. Camel-drivers should fulfill their conjugal duties once every thirty days. Seamen should fulfill their conjugal duties once every six months. Students of the Torah should fulfill their conjugal duties once a week. [Their obligation is limited,] because the Torah weakens their strength. It is the practice of Torah scholars to engage in marital relations on Friday night.
