Halakhah for Megillah 3:2
אֵין מוֹכְרִין בֵּית הַכְּנֶסֶת, אֶלָּא עַל תְּנַאי שֶׁאִם יִרְצוּ יַחֲזִירוּהוּ, דִּבְרֵי רַבִּי מֵאִיר. וַחֲכָמִים אוֹמְרִים, מוֹכְרִים אוֹתוֹ מִמְכַּר עוֹלָם, חוּץ מֵאַרְבָּעָה דְּבָרִים, לְמֶרְחָץ וּלְבֻרְסְקִי וְלִטְבִילָה וּלְבֵית הַמָּיִם. רַבִּי יְהוּדָה אוֹמֵר, מוֹכְרִין אוֹתוֹ לְשֵׁם חָצֵר, וְהַלּוֹקֵחַ מַה שֶּׁיִּרְצֶה יַעֲשֶׂה:
A house of prayer may be sold only on condition that if they (the sellers) desire, it will be returned. These are the words of R. Meir. [Even from the many to the many it may not be sold unconditionally, this being demeaning, as if to say: "It is nothing special to us." The halachah is not in accordance with R. Meir.] The sages say: It may be sold forever (i.e., unconditionally) [even to an individual, for any purpose], except for four things: a bathhouse, a tannery, a mikveh, a "watering" house [i.e., for washing (clothing); or, for passing water.] R. Yehudah says: It may be sold as a courtyard, and the buyer can do what he wants with it. [The halachah is not in accordance with R. Yehudah.]