He might, had He pleased, have wiped all spot and trace of wound from His glorified body; but He had reasons for retaining them. He shewed them to Thomas, who would not believe except he saw and touched; and He will shew them to His enemies, not to say, as He did to Thomas, Because thou hast seen, thou hast believed, but to convict them: Behold the Man whom ye crucified, see the wounds which ye inflicted, recognise the side which ye pierced, that it was by you, and for you, that it was opened, and yet ye cannot enter there.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: de Symb. ad Cat. ii. 8