Reference for Megillah 43:22

בשלמא רב הונא קרי בכהני דהא אפילו רב אמי ורב אסי דכהני חשיבי דארעא ישראל מיכף כייפו ליה לרב הונא אלא רב הא איכא שמואל דכהנא הוה ודבר עליה

I can understand that R. Huna read as kohen, because even R. Assi and R. Ammi who were important kohanim of Eretz Israel were subject to the authority of R. Huna. But as for Rav, there was Shmuel, who was a kohen and who took precedence over him?

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow