No injunction, unless provided by special statute, shall operate until the party obtaining the same shall give an undertaking, executed by one or more sufficient sureties, who shall justify as provided in sections 25-2222 and 25-2223. The undertaking shall be approved by the clerk of the court granting such injunction, in an amount to be fixed by the court or judge allowing the same, to secure to the party enjoined the damages he may sustain, if it be finally decided that the injunction ought not to have been granted.