Translation:Mishnah/Seder Moed/Tractate Eruvin/Chapter 3/6
R’ Eliezer says: If Yom Tov adjoins the Sabbath either before it or after it – a person may make two eruvin and declare, ‘my eruv [for] the first is to the east and [for] the second to the west;’ ‘My eruv is for the first, but for the second I am as my townspeople;’ or My eruv is for the second but for the first I am as my townspeople. But the Sages say: He makes an eruv to one direction or he makes no eruv at all; either he makes an eruv for both days or he makes no eruv at all. How should one proceed? He should take it on the first and stay with it until nightfall, then take it and go. On the second, he should stay with it until nightfall, then eat it. Thus he benefits in his walking area, and he benefits from his eruv. If it was eaten on the first the eruv is valid for the first, but the eruv is not valid for the second. Said R’ Eliezer: So you agree with me that they are two periods of holiness.