Demai 5:11: [If one] took Terumah from Demai [produce from which it is uncertain if tithes were already taken] for [other] Demai, or from Demai for produce that has certainly not been tithed, [this is treated with the stringencies of valid] Terumah, [but] one must return and retake the Terumah [in a valid manner]. From produce that has certainly not been tithed for Demai, [this is treated with the stringencies of valid] Terumah, and cannot be eaten until Terumot and Ma'asrot have been removed for it.

תרם מן הדמאי על הדמאי מדמאי על הודאי תרומה ויחזור ויתרום. מן הודאי על הדמאי תרומה ולא תאכל עד שיוציא עליה תרומות ומעשרות:

Demai 6:1: Someone who received a field [as a sharecropper] from a Jew, a non-Jew, or a Cuthite, should divide up [the produce] in their presence. One who rents a field from a Jew, must separate the Terumah [produce consecrated for priestly consumption] and then give [the landlord] his portion. Rabbi Yehudah said: When is this? When the payment is from the same field and the same species; however, if the payment is from a different field or a different species, he must separate the tithes and then give [the landlord] his portion.

המקבל שדה מישראל מן העובד כוכבים ומן הכותי יחלק לפניהם. החוכר שדה מישראל תורם ונותן לו. אמר רבי יהודה אימתי בזמן שנתן לו מאותה השדה ומאותו המין אבל אם נתן לו משדה אחרת או ממין אחר מעשר ונותן לו: