(1) A person who, at the time of the devolution of the inheritance, lived in the same household as the deceased, is obliged to inform the heir on request what transactions relating to the inheritance they conducted and what they know of the whereabouts of the objects of the inheritance.
(2) If there is reason to assume that the information was not given with the requisite care, then on demand by the heir, the person obliged is to declare in lieu of an oath, to be recorded in writing, that they made their statements, to the best of their knowledge, as fully as they were able.
(3) The provisions of section 259 (3) and section 261 apply.