English: Rava said: Avraham our father even observed the laws of eruv tavshilin, as it is said “and My teachings” — one written Torah and one oral Torah.
On the daf / in context: The plural “torotai” is taken to include rabbinic enactments such as eruv tavshilin, showing that Avraham kept both the Written and the Oral Torah in full.
Type of Learning
Custom (Bavli — Avraham observed even eruv tavshilin)
What Is Learned
Avraham observed even rabbinic decrees such as eruv tavshilin; the plural “My teachings” is the source for the claim that he kept the Oral Torah as well.