Zevachim 121

הא רבי ישמעאל הא רבנן

The former agrees with R'Ishmael,<span class="x" onmousemove="('comment',' Who assimilates the flesh to the blood; hence it may not be eaten.');">¹</span> the latter with the Rabbis.<span class="x" onmousemove="('comment',' Who do not assimilate the flesh to the blood.');">²</span>

ואיבעית אימא הא והא בקדשי קדשים ומאי בשני מקומות קודם שיעמידו לוים את המשכן

Alternatively, both treat of sacrifices of higher sanctity; but what does 'in two places' mean? Before the Levites set up the Tabernacle