California Code, Probate Code - PROB § 3142

(a) If a spouse is alleged to lack legal capacity for the proposed transaction and has no conservator, the court, before commencement of the hearing on the merits, shall inform the spouse of all of the following:

(b) This section does not apply if the spouse is absent from the hearing and is not required to attend the hearing under the provisions of subdivision (a) of Section 3141 and any showing required by Section 3141 has been made.