Jerusalem Talmud Avodah Zarah 3.12

משנה: נָטַל מִמֶּנָּה עֵצִים אֲסוּרִין בַּהֲנָיָיה. הִסִּיק בָּהֶן אֶת הַתַּנּוּר אִם חָדָשׁ יוּתָּץ. וְאִם יָשָׁן יוּצַּן. אָפָה בוֹ אֶת הַפַּת הַפַּת אֲסוּרָה בַהֲנָיָיה. נִתְעָרְבָה בַאֲחֵרוֹת כּוּלָּן אֲסוּרוֹת בַּהֲנָאָה. רִבִּי לִיעֶזֶר אוֹמֵר יוֹלִיךְ הֲנָיָיה לְיָם הַמֶּלַח. אָמְרוּ לוֹ אֵין פִּדְיוֹן לַעֲבוֹדָה זָרָה.

MISHNAH: If he took wood from it, it is forbidden for usufruct. If he used it to heat an oven, if it was new it must be destroyed, if it was old it must be cooled down. If he used it to bake bread, it is forbidden for usufruct. If it was mixed with other loaves, all are forbidden for usufruct. Rebbi Eliezer says, he should bring his profit to the Dead Sea. They said to him, idols cannot be redeemed.

הלכה: נָטַל מִמֶּנָּה עֵצִים כול׳. אָמַר רַב חַסְדַּאי. בִּסְתָם חֲלוּקִין. מָה נָן קַיָימִין. אִם לְהַסִּיק דִּבְרֵי הַכֹּל מוּתָּר. אִם לְעַשֵּׁן דְּבְרֵי הַכֹּל אָסוּר. אֶלָּא כֵן אֲנָן קַיָימִין בִּסְתָם.

HALAKHAH: “If he took wood from it,” etc. Rav Ḥasdai said, they are disagreeing in the indeterminate case. Where do we hold? If to heat, everybody agrees that it is permitted. If to fumigate, everybody agrees that it is forbidden. Where do we hold? In the indeterminate case.