Just wondering,according to maskana,that we hold that 2 days rosh hashanah are different-and we do not hold like opinion of Nehardai,so Rav Ashi had no way to prepare food on 2nd day Rosh Hashanah,for Shabbos?Today,we can rely on our Rav,bedievd?According to what Isaw in Rambam and Shulchan aruch,apparently there is no solution,if one forgot before Rosh Hashanah.Thanks
moshe melnick, miami,fl usa
Even then one could rely on his Rav's Eruv Tavshilin if he forgot to make his own (see Beitzah 15a and Shulchan Aruch OC 527:7), and this of course works for Rosh Hashanah as well. (The only thing that does not work for Rosh Hashanah is making a conditional Eruv Tavshilin on the first day of Yom Tov, because, as you pointed out, we do not rule like Neharda'ei). Presumably, the problem for Rav Ashi was that he was the Rav of his town and he forgot to make one. (By the way, it does not have to be the Rav of the town who makes an Eruv for everyone. Anyone can do that. Accordingly, in some places, there are at least a few hundred backup Eruvim. Apparently, Rav Ashi did not want to assume that someone other than the Rav had made one for everyone.)
Kesivah v'Chasimah Tovah,
Yonasan Sigler
This is not a Psak Halachah