בֶּן נֹחַ שֶׁשָּׁגַג בְּאַחַת מִמִּצְוֹתָיו פָּטוּר מִכְּלוּם. חוּץ מֵרוֹצֵחַ בִּשְׁגָגָה שֶׁאִם הֲרָגוֹ גּוֹאֵל הַדָּם אֵינוֹ נֶהֱרָג עָלָיו. וְאֵין לוֹ עִיר מִקְלָט. אֲבָל בָּתֵּי דִּינֵיהֶן אֵין מְמִיתִין אוֹתוֹ. בַּמֶּה דְּבָרִים אֲמוּרִים בְּשָׁגַג בְּאַחַת מִמִּצְוֹת וְעָבַר בְּלֹא כַּוָּנָה. כְּגוֹן שֶׁבָּעַל אֵשֶׁת חֲבֵרוֹ וְדִמָּה שֶׁהִיא אִשְׁתּוֹ אוֹ פְּנוּיָה. אֲבָל אִם יָדַע שֶׁהִיא אֵשֶׁת חֲבֵרוֹ וְלֹא יָדַע שֶׁהִיא אֲסוּרָה עָלָיו. אֶלָּא עָלָה עַל לִבּוֹ שֶׁדָּבָר זֶה מֻתָּר לוֹ. וְכֵן אִם הָרַג וְהוּא לֹא יָדַע שֶׁאָסוּר לַהֲרֹג. הֲרֵי זֶה קָרוֹב לְמֵזִיד וְנֶהֱרָג. וְלֹא תֵּחָשֵׁב זוֹ לָהֶם שְׁגָגָה מִפְּנֵי שֶׁהָיָה לוֹ לִלְמֹד וְלֹא לָמַד:
A Ben Noach that transgressed unintentionally is exempt (from punishment) from all of them (the transgressions) – except for an unintentional killer (for instance, if he was chopping down a tree and the ax head flew off the handle and killed someone nearby). That if the redeemer of blood (a blood relative that has the right to kill an unintentional killer) killed him (the unintentional killer) – he (the redeemer of blood) is not killed for (killing) him (the unintentional killer). And he (the unintentional killer) has no refuge cities (to escape to where an unintentional killer may not be killed by a redeemer of blood) - however the courts of justice cannot have him executed. What case are we talking about – [about ] unintentionally [transgressing] one of the commandments without intention, for instance he had relations with the wife of his fellow, and he [actually] thought that she was his wife or single. However if he knew that she was his fellow's wife yet he did not know that she was forbidden to him, rather it entered into his mind that this matter was permitted to him. And also if he killed and did not that it was forbidden to kill – behold this is close to being done intentionally – and he is executed. And this is not considered unintentional because he should have learned and he did not.
