Reference for Avodah Zarah 97:3

מאי לאו הא ר' יוסי והא רבנן לא הא ר"א והא רבנן

Is it not, then, that the former is that of R. Yose and the latter that of the Rabbis? No, the former is that of R. Eliezer and the latter that of the rabbis.

Jastrow