Jesus answered,
Neither has this man sinned, nor his parents: but that the works of God should be made manifest in him.
All Commentaries on John 9:3 Go To John 9
Irenaeus of Lyons
AD 202
And therefore, when His disciples asked Him for what cause the man had been born blind, whether for his own or his parents' fault, He replied, "Neither hath this man sinned, nor his parents, but that the works of God should be made manifest in him."