Study Zevachim folio 100B with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
Rava said there is a different resolution to the contradiction between the statements of R' Shimon. Both this baraita and that baraita are discussing cases where the relative died after midday on the 14th of Nisan, and still it is not difficult. Here, his relative died before the priests would have
Rav Adda bar Mattana said to Rava: In a case where one’s relative died after the priests slaughtered the Paschal offering and sprinkled its blood, why should he be permitted to partake of the Paschal offering? What was, was, and although the offering was sacrificed, isn’t he still an acute mourne
What is the statement of Rabba bar Rav Huna that teaches that partaking of the Paschal offering is indispensable? As it is taught in a baraita: The day that a person receives tidings that his relative died is considered as if it were the day of burial with regard to the mitzva of the 7-day mourning
The Talmud challenges: This baraita itself is difficult. At first you say: The day of tidings is considered as if it were the day of burial for the mitzva of the 7-day and 30-day mourning periods; and with regard to partaking of the Paschal offering, it is like the day of the gathering of bones,
Rav Ḥisda said: Whether it is permitted to partake of sacrificial meat the night after the day of burial is a dispute between tanna’im, as the Talmud will explain.