Is the tenant partner required to pay rent for the household items brought by the other partner's relative during the period of non-use while traveling, given that they will continue to live together after their return?

The rent for the leased property is due immediately upon its delivery and enabling its use, even if the tenant does not actually use it. This is because the contract is an absolute exchange, so if the property is delivered and the tenant is enabled to use it, the rent becomes due, similar to the price of a sold item if it is damaged while in the buyer's possession.

If an agreement is made to rent a bed for an academic year, the tenant is obligated to pay the rent for the entire agreed-upon period, including the period of their travel, just like with apartment rent. However, if the rental is on a month-to-month basis, the contract is not binding, and the tenant has the right to terminate it in any month, and is not obligated to pay the rent for the bed during the months they traveled.