Tex. Code Crim. Proc. art. 37.02

In misdemeanor cases in the district court, where one or more jurors have been discharged from serving after the cause has been submitted to them, if all the alternate jurors selected under Article 33.011 of this code have either been seated or discharged, and there be as many as nine of the jurors remaining, those remaining may render and return a verdict; but in such case, the verdict must be signed by each juror rendering it.