Nedarim 46A

ושניהם אסורים להעמיד ריחים ותנור ולגדל תרנגולים.

And all agree that they are both prohibited from setting up a mill or an oven in the jointly owned courtyard, or to raise chickens in it.

היה אחד מהם מודר הנאה מחבירו ⁠— לא יכנס לחצר. רבי אליעזר בן יעקב אומר, יכול הוא לומר לו: לתוך שלי אני נכנס, ואיני נכנס לתוך שלך. וכופין את הנודר למכור את חלקו.

If only one of the partners was prohibited by a vow from deriving benefit from the other, he may not enter the courtyard. R' Eliezer ben Ya’akov says: He can say to the partner: I am entering into my own portion and I am not entering into your portion. And the court forces the one who took such a vow to sell his portion so that he does not cause the other to transgress.

היה אחד מן השוק מודר באחד מהם הנאה ⁠— לא יכנס לחצר. רבי אליעזר בן יעקב אומר, יכול לומר לו: לתוך של חבירך אני נכנס, ואיני נכנס לתוך שלך.

If someone from the marketplace is prohibited by a vow from deriving benefit from one of the partners, he may not enter a courtyard of the partners, since it belongs partly to the one from whom he may not benefit. R' Eliezer ben Ya’akov says: He can say to him: I am entering into the portion of another resident of the courtyard and I am not entering your own portion since it does not belong entirely to you.

המודר הנאה מחבירו ויש לו מרחץ ובית הבד מושכרין בעיר, אם יש לו בהן תפיסת יד ⁠— אסור, אין לו בהן תפיסת יד ⁠— מותר.

With regard to one prohibited by a vow from deriving benefit from another and he has a bathhouse or an olive press in the city that is leased out and available for public use, if the one who took the vow has a right to profits from usage in the property, i.e., he retains some rights in the property and has not leased them out completely, it is forbidden for the one who took the vow to use it. If he has no right of usage in the property, it is permitted.