Quotation על עבודה זרה 5:1

Rebbi Abbahu said: There are Samaritan places permitted since the days of Joshua bin Nun and they remain permitted⁷¹The entire Land of Israel was permitted from the time of the conquest under Joshua. R. Abbahu notes that there were places held by the returnees from Babylonia that in his time were occupied by Samaritans. Since the territory acquired the status of holiness with their return, it cannot lose it again even if the place is occupied by people who cannot be trusted in matters of ritual purity and Cohanim may go there.. Rebbi Yose inquired: If that is so, Cohanim should not worry about their ḥallah. But we see that rabbis worry⁷²They do treat Samaritan ḥallah as impure.! Rebbi Judah ben Pazi said, it is not because of what you said, but because it never was absolutely under government control⁷³The places were never included in the Persian province of Yehud nor consolidated into the Hasmonean kingdom..