Tex. Est. Code § 1105.109
The following form, or a form with the same substance, may be used for the bond of a guardian:
"The State of Texas
"County of __________
"Know all persons by these presents that we, _____ (insert name of each principal), as principal, and ____ (insert name of each surety), as sureties, are held and firmly bound to the judge of ____ (insert reference to appropriate judge), and that judge's successors in office, in the sum of $______; conditioned that the above bound principal or principals, appointed by the judge as guardian or temporary guardian of the person or of the estate, or both, of __________ (insert name of ward, stating in each case whether the person is a minor or an incapacitated person other than a minor), shall well and truly perform all of the duties required of the guardian or temporary guardian by law under appointment."
Tex. Estates § 1105.109