Key legal question
Whether the lower court violated the duty to question the party under § 55 ZPO/ZH by not asking X. whether her documents should be formally filed as evidence.
Extracted holding
No. The party's submissions were clear and complete; only proof was missing, and the cantonal rule did not require the judge to ask about evidence production in this situation.
Extracted reasoning
The duty to question applies when submissions are unclear, incomplete, or indefinite. It does not unconditionally extend to offering proof. The cantonal court's approach was not arbitrary.