The order directing a temporary injunction must require that before the writ issues, a bond be filed, with a penalty to be specified in the order, which shall be 125 percent of the probable liability to be incurred. Such bond with sureties to be approved by the clerk shall be conditioned to pay all damages which may be adjudged against the petitioner by reason of the injunction. But in actions for dissolution of marriage, separate maintenance, annulment of marriage, or domestic abuse, the court in its discretion may waive any bond, or fix its penalty in any amount deemed just and reasonable.
Iowa. R. Civ. P. 1.1508