Tex. Penal Code § 22.10
(a) A person commits an offense if he intentionally or knowingly leaves a child in a motor vehicle for longer than five minutes, knowing that the child is:
Added by Acts 1984, 68th Leg., 2nd C.S., ch. 24, Sec. 1, eff. Oct. 2, 1984.
Amended by Acts 1993, 73rd Leg., ch. 900, Sec. 1.01, eff. Sept. 1, 1994.