Tosefta for Terumot 11:9
כַּרְשִׁינֵי תְרוּמָה, מַאֲכִילִין אוֹתָם לַבְּהֵמָה וְלַחַיָּה וְלַתַּרְנְגוֹלִים. יִשְׂרָאֵל שֶׁשָּׂכַר פָּרָה מִכֹּהֵן, מַאֲכִילָהּ כַּרְשִׁינֵי תְרוּמָה. וְכֹהֵן שֶׁשָּׂכַר פָּרָה מִיִּשְׂרָאֵל, אַף עַל פִּי שֶׁמְּזוֹנוֹתֶיהָ עָלָיו, לֹא יַאֲכִילֶנָּה כַרְשִׁינֵי תְרוּמָה. יִשְׂרָאֵל שֶׁשָּׁם פָּרָה מִכֹּהֵן, לֹא יַאֲכִילֶנָּה כַרְשִׁינֵי תְרוּמָה. וְכֹהֵן שֶׁשָּׁם פָּרָה מִיִּשְׂרָאֵל, מַאֲכִילָהּ כַּרְשִׁינֵי תְרוּמָה:
Vetches of <i>Terumah</i>, they may be fed to cattle, to wild beasts or to chickens. An Israelite who hired a cow from a priest, he may feed it vetches of <i>Terumah</i>. But a priest who hired a cow from an Israelite, even though the responsibility of its food is his, he may not feed it vetches of <i>Terumah</i>. An Israelite who undertakes the care of a cow from a priest by [splitting the growth in its] appraised value, he may not feed it vetches of <i>Terumah</i>. But a priest who undertakes the care of a cow from an Israelite by appraised value, he may feed it vetches of <i>Terumah</i>.