Reference for Chullin 99:13

תניא רשב"ג אומר

The Following statement R'Abba's colleague - i.e., R'Zera - learnt from R'Abba<span class="x" onmousemove="('comment',' R. Abba, son of R. Hiyya b. Abba, not to be confused with R. Abba mentioned first (Rashi) .');">⁶</span>

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