Study Shabbat folio 35B with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
Rather, it must be that the reference is with regard to eating teruma. Priests may not eat teruma until twilight is completed, which according to R' Yosei’s opinion is slightly later than it is according to R' Yehuda’s opinion.
With regard to the period of twilight, Rav Yehuda said that Shmuel said: When one can see one star in the evening sky, it is still day; two stars, twilight; 3 stars, night. That was also taught in a baraita: When one can see one star in the evening sky, it is still day; two stars, twilight; 3 star
R' Yosei, son of R' Zevida, said: One who performs a prohibited labor during two twilights, one between Friday and Shabbat and one between Shabbat and the conclusion of Shabbat on Saturday night, is liable to bring a sin-offering for performing a prohibited labor on Shabbat whichever way you look a
A baraita states: They sound 6 blasts on Friday to announce that Shabbat is approaching. The Talmud details what each blast signifies. The first blast is in order to stop the people from work in the fields. The second blast is to stop those who are working in the city, and to inform the proprietors
Rabban Shimon ben Gamliel said: What shall we do to the Babylonian Jews? They stray from the custom, as they sound a tekia and a terua, and they accept Shabbat during the terua, i.e., upon hearing the blast of the terua. The Talmud asks about this: Do the Babylonians really sound only a tekia and