Augustine of Hippo
Catena Aurea · Johannesevangelium 4
When therefore the Lord knew how the Pharisees had heard that Jesus made and baptized more disciples than John, (Though Jesus himself baptized not, but his disciples,) He left Judæa, and departed again into Galilee. And he must needs go through Samaria. Then cometh he to a city of Samaria, which is called Sychar, near to the parcel of ground that Jacob gave to his son Joseph. Now Jacob’s well was there. Jesus therefore, being wearied with his journey, sat thus on the well: and it was about the sixth hour.
(Ad Seleuciam Ep. xviii.) But we must believe that the disciples of Christ were already baptized themselves, either with John’s baptism, or, as is more probable, with Christ’s. For He who had stooped to the humble service of washing His disciples’ feet, had not failed to administer baptism to His servants, who would thus be enabled in their turn to baptize others.