Rami bar Yechezkel sent a message to Rav Amram, "Tell me something from the fine things you cited from Rav Asi, regarding the [laws of] shelters built on boats": Eruvin 102a
Rami bar Yechezkel saying to ignore the principles his brother Rav Yehudah reported in the name of Shemuel, because they were incorrect: Ketuvot 21a, 60a, 76b
