לֹא־יִסְּכ֨וּ לַיהוָ֥ה ׀ יַיִן֮ וְלֹ֣א יֶֽעֶרְבוּ־לוֹ֒ זִבְחֵיהֶ֗ם כְּלֶ֤חֶם אוֹנִים֙ לָהֶ֔ם כָּל־אֹכְלָ֖יו יִטַמָּ֑אוּ כִּֽי־לַחְמָ֣ם לְנַפְשָׁ֔ם לֹ֥א יָב֖וֹא בֵּ֥ית יְהוָֽה׃
Hindi sila magbubuhos ng alak bilang handog sa Walang-Hanggan, at ang kanilang mga hain ay hindi magiging kalugud-lugod sa Kanya; ang mga ito ay magiging tulad ng tinapay ng nagluluksa para sa kanila; magiging marumi ang lahat ng kumakain nito; sapagkat ang kanilang tinapay ay para lamang sa kanilang sariling pagkain, hindi ito papasok sa bahay ng Walang-Hanggan.
Mishneh Torah, Rest
The measure of an eruv tavshilin is not less than a kazayit (the mass of a large olive)—whether it is for one or for thousands. And we do not make this eruv with bread nor with groats, but rather with a dish which is an accompaniment (to the bread)—such as meat, fish, eggs and that which is similar to them. For an eruv tavshilin, one can even rely upon lentils at the bottom of the pot, and even upon the fat on the knife when he cuts the roast—he may rub it off [for this purpose], if there is a kazayit of it.
Mishneh Torah, Rest
The dish that they spoke about regarding this eruv can even be roasted, even boiled, even pickled or smoked. One may surely even rely upon small fish that were rinsed with hot water, and their rinsing is their cooking.
Mishneh Torah, Rest
And this eruv needs to be in existence until one bakes all that he needs to bake and to cook all that he needs to cook and heat all that he needs. But if the eruv was eaten or lost or burnt before he cooked or baked—such a one is surely forbidden to bake and to cook or to heat, except for that which he is eating on the holiday alone. [However,] if he started on his dough or his dish and the eruv got eaten or lost—such a one can surely finish [the task].