4 The day after, which was Sunday, after the lessons and the sermon, when the Catechumens were dismissed, I was teaching the creed to certain candidates in the baptistery of the basilica. There it was reported to me that they had sent decani from the palace, and were putting up hangings, and that part of the people were going there. I, however, remained at my ministrations, and began to celebrate mass.
Source: Letters (New Advent)