תּוספֿתּא אויף שמות 22:8

One who steals terumah of dedicated [produce] (i.e., terumah dedicated to the Temple by a priest) but does not eat it pays the principal but does not pay the fifth, or double the principal (but see Ter. 6:4), for it says (Ex. 22:8), "he pays double to his neighbor," and not "[he pays double] to the Temple treasury." [But if] he ate the terumah, he pays double the principal and a fifth^*alt., "a principle and two fifths" (GR"A); "two fifths" (MS Vienna). A principal and a fifth is from chullin, and they are made holy like terumah. The principal is given to the treasurer, and the fifth is given to the property owner [from whom he stole]. As to the principal, [it is subject to the prohibition against] misuse of consecrated property. As to the fifth, it is not [subject to the prohibition against] misuse of consecrated property. A second fifth of terumah is given to the Temple treasurer^*see GR"A, omitting וחומש לבעלים, "and a fifth to the owners.". § [Regarding a situation where terumah fell into either a basket of terumah or a basket of chullin, and it is not known which (Ter. 7:5),] Rabbi Meir renders the second basket liable in challah, [but] Rabbi Yosei exempts it. And the Sages say, medumma (a mixture of terumah and chullin) is exempt from challah, [and] doubtful medumma is eaten [by the priests] on account of dema (i.e., the potential terumah within the mixture), and is liable in challah.