Mo. Rev. Stat. § 526.180: Motion, when continued.

If, after a motion for a dissolution of the injunction is made, either party will satisfy the court, by his own affidavit, or that of any other person for him, that any material specified part of the bill or answer to which he objects is untrue, that he has witnesses whose testimony he believes he can procure within a reasonable time, or other material testimony which will disprove the same, and that he has not been able to procure such testimony by using due diligence, the court may continue the motion until a later date.