Council of Trent
Council of Trent: Session VII, On The Sacraments In General, Canon XIII
Waterworth (1848), Hanover transcription; separate papal documents excluded
On The Sacraments In General, Canon XIII
ON THE SACRAMENTS IN GENERAL
CANON XIII.-If any one saith, that the received and approved rites of the Catholic Church, wont to be used in the solemn administration of the sacraments, may be contemned, or without sin be omitted at pleasure by the ministers, or be changed, by every pastor of the churches, into other new ones; let him be anathema.
Translation: J. Waterworth, The Canons and Decrees of the Council of Trent (1848), Hanover Historical Texts Project transcription (1995).
Source: Council of Trent: Session VII (Hanover Historical Texts Project)