Iowa Code § 636.32: Receipt taken.

If a fiduciary not governed by the probate code shall otherwise discharge all the duties imposed upon that fiduciary by such appointment, the fiduciary may take the receipt of the clerk of the district court for such funds, moneys, or securities so deposited, which receipt shall specifically set forth from whom said funds, moneys, or securities, were derived, the amount thereof, and the name of the person to whom due or to become due, if known.