The Babylonian Talmud was sealed in 912 according to the Seleucid era, which is the year 4260 of creation, in the days of Rav Yosi mentioned above, year 24 of his leadership [(see above 4236)], 72 years after the death of Rav Ashi. We find that from the year the Mishnah was sealed until the sealing of the Talmud is 316 years. According to the tradition of the Raavad [thus according to the Raavad, the sealing of the Mishnah was in the year 3948.
But according to Rashbag it was in the year 3978, thus between sealing and sealing there were 282 years. And in Yuchsin in the order of Kabbalah that the Rama copied, it writes the year 4264 was the sealing of the Talmud. And this is the language of Shir HaShirim, page 35, section 2, in the name of Yesod Olam: Mereimar and Mar the son of Rav Ashi completed the Gemara in the year 4264, and 80 years passed from when they began to compile the Gemara until it was sealed, and from when the Mishnah was written until the sealing of the Gemara is 316 years, end of quote.
Shir HaShirim writes: and 50 years from when Rav Ashi began to write. This is a scribal error, for Rav Ashi began in the year 4127. And it should say from the death of Rav Ashi it is close to 50 years].