In a dispute with Abbaye, switching sides with him: Shabbat 92a
Rava explaining how a proof for his own side, could be explained in accordance with Abbaye's view: Succah 19a
Abbaye used to entertain Rava [perhaps Rabbah] by juggling 8, or perhaps 4, eggs: Succah 53a
Abbaye was silent (Ishtik) in response to a question, but then Rava responded for him: Makkot 6a
Abbaye and Rava had a lifelong disagreement regarding transport on Shabbat in a certain alley in the house of Bar Chavu: Eruvin 15a
Rava sending a response to Abbaye, via Rav Shemaya bar Zeira: Eruvin 93a
Rava diluted and then tasted wine and didn't like it, so he returned it to the store. Abbaye challenged him that the merchant might then sell it as undiluted wine: Bava Metzia 60a
After Abbaye died, his wife Chomah asked Rava to assign support for her from Abbaye's estate. She specified wine as part of it; Rava responded that he knew Abbaye never drank, and she replied that Abbaye had given her plentiful wine: Ketuvot 65a