83 And so once again We take this warning which Our predecessors have repeated over and over again and which has been inserted in the Code of Canon Law as well, (87) and We issue it to you, Venerable Brethren, on the occasion of the solemn celebration of the centenary of the holy catechist and preacher of Ars.
Source: Sacerdotii Nostri Primordia (Vatican.va)