Bede the Venerable — as excerpted in the Catena Aurea on Mark 14:66-72

“(ubi sup.) The other Evangelists do not mention this crowing of the cock; they do not however deny the fact, as also some pass over many other things in silence, which others relate. There follows: And a maid saw him again, and began to say to them that stood by, This is one of them”