California Code, Penal Code - PEN § 1203.12

The probation officer shall furnish to each person who has been released on probation, and committed to his care, a written statement of the terms and conditions of his probation unless such a statement has been furnished by the court, and shall report to the court, or judge, releasing such person on probation, any violation or breach of the terms and conditions imposed by such court on the person placed in his care.