California Code, Welfare and Institutions Code - WIC § 11008.135

(a) Notwithstanding any other provision of law, in determining the eligibility and amount of aid for a person who is not a citizen or national of the United States under this division, the income and resources of the person shall be deemed to include the income and resources of any person who has executed an affidavit of support on behalf of the person and the spouse of that person as provided in Subtitle C (commencing with Section 421) of Title IV of Public Law 104-193,  1 as amended by Public Law 104-208, and any subsequent amendments thereto, subject to any exceptions required by those provisions, including exceptions for indigents and battered spouses.

(b) As a condition of eligibility, the sponsored applicant or recipient shall provide information regarding the income and resources of any person, and the spouse of that person, who has executed an affidavit of support on behalf of the person who is not a citizen or national of the United States.