Texas Property Code - PROP § 52.005. Satisfaction of Judgment

(1) a return on an execution issued on the judgment, or a copy of the return, certified by the officer making the return and showing:

(2) a receipt, acknowledgement, or release that is signed by the party entitled to receive payment of the judgment or by that person's agent or attorney of record and that is acknowledged or proven for record in the manner required for deeds.