Well, a Catholic priest told everyone in the room that. Everyone in the room, including myself, are catechists for the RC Archdiocese (this was 3 years ago) and he was teaching about the 7 Sacraments and obviously the topic is on baptism. And the session was a quarterly formal learning institute for all the catechists in the archdiocese.
Other than that, I have no source material. I never bothered to research futher on the topic.