Talmud (Rodkinson Edition) — Book 2…
“ There is a tradition among Israelites that it is an assured fact, that Elijah will not come on the eve of a Sabbath or a festival. If that is so, why should the man not be permitted to drink wine on the eve of Sabbath? Because although Elijah will not come, the Messiah himself might come.Thus it must be assumed, that if there is a legal limit above ten spans, a man who wishes to be a Nazarite on the day of the coming of the Messiah should be permitted to drink wine not only on Sabbath and the festivals but also on the day following Sabbath, because Elijah cannot come on the Sabbath? ”
