Notes on The Holy Gospel of Jesus Christ, According to St. Matthew (Author Bishop Richard Challoner (ed.))
26:26 This is my body: He does not say, This is the figure of my body--but This is my body. (2 Council of Nice, Act. 6.) Neither does he say in this, or with this is my body; but absolutely, This is my body: which plainly implies transubstantiation.
Original Douay-Rheims from Project Gutenberg - Massive cleanup of OCR problems and editing done locally.