Rav Asi is not to be confused with R' Asi: Tos. Shabbat 45b
The eulogy for him: Moed Katan 25b
Crying over the difficulty of achieving HaShem's Forgiveness: Chagigah 4b
R' Zeira Suggested to R' Asi, who agreed, that R' Asi had not presented an answer because his speed in learning had led him to omit it: Shabbat 130b
Rav Asi, or possibly R' Zeira, challenging R' Asi and causing him to be "Silenced for about an hour": Kiddushin 39a
R' Asi and R' Chiyya Bar Abba labelled "Dardeki [Children]" by R' Yochanan, and chastised for speaking without knowledge: Shabbat 145b
Explaining to R' Chiyya Bar Abba why the birds of Bavel were fatter than those of Israel: Shabbat 145b
Explaining to R' Chiyya Bar Abba why the holidays of Israel were less joyful than those of Bavel: Shabbat 145b
Explaining to R' Chiyya Bar Abba why the Torah Scholars of Israel were less visible than those of Bavel: Shabbat 145b
Explaining to R' Chiyya Bar Abba why the non-Jews sweated more than the Jews: Shabbat 145b
R' Asi challenged a statement of R' Ami because he had spoken more stringently earlier; R' Ami responded that the earlier statement was a stake to prevent error: Gittin 17a
R' Asi rescinded a person's vow, simply by acquiring his affirmation that he no longer felt the emotion which had driven him to vow initially: Nedarim 21b
R' Elazar didn't come to the study hall once, and he found R' Asi and asked him what they had learned that day in the study hall: Eruvin 47a
R' Chanina bar Yosef, R' Chiyya bar Abba and R' Asi were staying in an inn together and had a Halachic question; R' Chanina bar Yosef gave a leniency, which R' Asi opposed. R' Chiyya bar Abba said, "Let us depend on the elder," which they did. They later asked R' Yochanan, and he approved of their actions, to the amazement of the students in Neherdaa and of R' Elazar: Eruvin 65b-66b