סימן עב סעיף יז
הַתַּבְשִׁילִין צְרִיכִין לְהַשְׁגִּיחַ לַהֲסִירָן מִן הַגֶּחָלִים קֹדֶם שַׁבָּת, (עַיֵן לְקַמָּן סִימָן פ' סָעִיף ה'). וְאִם שָׁכַח וְלֹא הֵסִירָן, אֲזַי אִם יָבֹא בַשַׁבָּת לָקַחַת אֶת הַקְּדֵרָה וְגֶחָלִים בּוֹעֲרוֹת סָבִיב לָהּ, שֶׁאִם יִקַּח אֶת הַקְּדֵרָה יָזִיז אֶת הַגֶּחָלִים אָסוּר לְיִשְֹרָאֵל לָקַחַת אוֹתָהּ. וְעַל יְדֵי אֵינוֹ יְהוּדִי, מֻתָּר.
Cooked foods must be removed from the coals before Shabbos. If you forgot, and did not remove them, you are forbidden to remove the pot while coals are burning around it; since by taking the pot the coals will be moved.90This is true only when the coals surround the pot because, inevitably, they will be moved when the pot is taken out. This will cause the top coals to be extinguished and the bottom ones to be ignited which are both melachos that are prohibited on Shabbos. But if the pot rests on top of the coals and is not surrounded by coals, you should have a non-Jew remove it. But if you cannot find one, you may carefully remove the pot yourself. [Rema 253: 1, see Mishnah Berurah]. But it is permissible through a non-Jew.91Even though it is inevitable (psik reisha) [see footnote 90] you may still tell a non-Jew to do it. Since you do not desire the extinguishing and igniting of the coals, it is only a shvus and is permitted through a non-Jew. The Mordechai prohibits telling a non-Jew to remove the pot in this case. The Mishnah Berurah is lenient if you need the food for Shabbos.
תנא דבי אליהו כל השונה הלכות בכל יום מובטח לו שהוא בן העולם הבא שנאמר הליכות עולם לו אל תקרי הליכות אלא הלכות (נדה ע"ג.)