I read this as well, then I read the catechism entry on the Sacrament of Penance. But I missed this part:
Thanks for digging this up, babochka. Yes, this section of the Catechism is describing the sort of general behavior a priest should exhibit in order to be a good confessor, but there are no details or official directions beyond this brief statement (at least none that I’m aware of off the top of my head). How a priest specifically goes about doing this is voluntary. As I mentioned before, there is no instruction in the
rite of the Sacrament of Reconciliation concerning this (one would expect to see it in #10 of the section on Penance under the heading, “Pastoral Exercise of this Ministry”, but there is no mention here of the practice of a priest doing penance for his penitents).
Because the priest mentioned by Edward H said that he was referring to the Catechism, I think you’re correct in proposing CCC #1466 as the specific paragraph he had in mind.
Gratia vobis et pax multiplicetur,
Fr. Eric
Diocese of Savannah