Rav Tavyumi died in the year 4228 [(and in Shir HaShirim, page 35, section 2, there is a scribal error). And in Sefer HaKeritot it writes he died in 899 according to the Seleucid era, which is the year 4247, which requires examination. And Rashbag Yuchsin says he died on the night following Yom Kippur in the year 879, which is the year 4227. And it writes: and Rav Huna bar Mar Zutra, the Exilarch, was killed].

Rabbah Tosefa'ah became head in Sura after the death of Rav Tavyumi from the year 4228 for 6 years and died in 4234. [And Rashbag wrote that he died in 880, should say 884, i.e., according to the Seleucid era, and it is easy to understand. And Rabbah Tosefa'ah was killed (Sefer HaKeritot), which requires examination.]