CCP 2131     

Art. 2131.  Same; narrative of facts

If the testimony of the witnesses has not been taken down in writing the appellant must request the other parties to join with him in a written and signed narrative of the facts, and in cases of disagreement as to this narrative or of refusal to join in it, at any time prior to the lodging of the record in the appellate court, the judge shall make a written narrative of the facts, which shall be conclusive.