لو حلف لا يسكن دار فلان يحنث لو كانت الدار ملكا لفلان أو كانت بأجرة أو عارية
A person who swears not to reside in someone's house violates the oath by residing there whether the house is owned, leased, or used on loan.
The ordinary attribution “so-and-so's house” need not exclusively identify legal title. Context may relate the property to someone's use or residence. The governing action in this oath is residing.
This must be distinguished from the previous example about entering a house. Entry and residence are different acts; their legal assessment follows the specific expression used.