On Baptism, Against the Donatists 36Augustin undertakes the refutation of the arguments which might be derived from the epistle of Cyprian to Jubaianus, to give color to the view that the baptism of Christ could not be conferred by heretics.

Augustine · The Nicene and Post-Nicene Fathers Series I Volume IV: The Anti-Manichaean Writings, The Anti-Donatist Writings by Philip Schaff