California Code
ARTICLE 3 - Mutual Obligations of Principals and Third Persons
Section 2338.

2338. Unless required by or under the authority of law to employ that particular agent, a principal is responsible to third persons for the negligence of his agent in the transaction of the business of the agency, including wrongful acts committed by such agent in and as a part of the transaction of such business, and for his willful omission to fulfill the obligations of the principal.

(Enacted 1872.)