Pesachim7: 4
חֲמִשָּׁה דְבָרִים בָּאִין בְּטֻמְאָה, וְאֵינָן נֶאֱכָלִין בְּטֻמְאָה: הָעֹמֶר, וּשְׁתֵּי הַלֶּחֶם, וְלֶחֶם הַפָּנִים, וְזִבְחֵי שַׁלְמֵי צִבּוּר, וּשְׂעִירֵי רָאשֵׁי חֳדָשִׁים.  הַפֶּסַח שֶׁבָּא בְטֻמְאָה — נֶאֱכָל בְּטֻמְאָה, שֶׁלֹּא בָא מִתְּחִלָּתוֹ אֶלָּא לַאֲכִילָה.
Five things may be offered in a state of con-tamination, but may not be eaten in a state of contamination: the Omer, the Two Loaves, the Panim Breads, the public peace-offerings, and the he-goats of the New Moons.  [But] the pesach-offering that is offered in con-tamination may be eaten in contamination, because its original purpose is only for eating.