Mishnah for Maaser Sheni 3:7
אִילָן שֶׁהוּא עוֹמֵד בִּפְנִים וְנוֹטֶה לַחוּץ, אוֹ עוֹמֵד בַּחוּץ וְנוֹטֶה לִפְנִים, מִכְּנֶגֶד הַחוֹמָה וְלִפְנִים, כְּלִפְנִים. מִכְּנֶגֶד הַחוֹמָה וְלַחוּץ, כְּלַחוּץ. בָּתֵּי הַבַּדִּים שֶׁפִּתְחֵיהֶן לִפְנִים וַחֲלָלָן לַחוּץ, אוֹ שֶׁפִּתְחֵיהֶן לַחוּץ וַחֲלָלָן לִפְנִים, בֵּית שַׁמַּאי אוֹמְרִים, הַכֹּל כְּלִפְנִים. וּבֵית הִלֵּל אוֹמְרִים, מִכְּנֶגֶד הַחוֹמָה וְלִפְנִים, כְּלִפְנִים. מִכְּנֶגֶד הַחוֹמָה וְלַחוּץ, כְּלַחוּץ:
If a tree stands inside [the walls of Jerusalem] and leans outside, or stands outside and leans inside: from [the part of the tree] aligned with the wall and inwards should be considered inside, and from [the part of the tree] aligned with the wall and outwards should be considered outside. Olive press buildings whose openings are inside the wall but whose chambers are outside the wall, or whose openings are outside the wall but whose chambers are inside the wall: Beit Shammai says: all of it should be considered inside. Beit Hillel says: from [the part of the buildings] aligned with the wall and inwards should be considered inside, and from [the part of the buildings] aligned with the wall and outwards should be considered outside.