If a person fails to appear in response to an order for a hearing in aid of execution, or if a person who has been subpoenaed to testify at the hearing fails to appear or to testify concerning anything about which the person can lawfully be questioned, the court shall issue a citation for contempt to that person providing that the person must appear in court at a date and time specified to show cause why the debtor should not be held in contempt and punished for contempt. The citation for contempt does not need to be supported by affidavit or other verification.