When the petition is granted, after the time fixed by the court or justice, the prisoner may apply to the commissioners of jail delivery in the county for a discharge from imprisonment. After giving notice to the opposite party before such examination, as provided in other cases in this chapter, if they find on examination that such person has not property, except his or her wearing apparel, exceeding $20.00, the commissioners shall administer to him or her the following oath:

"You solemnly swear that you have not estate, real or personal, exceeding $20.00, except your wearing apparel, and that you have not disposed of any of your property for the purpose of defrauding the complainant in the proceedings on which you are committed. So help you God."