Reference for Eruvin 76:10

אמר רבה התם משום הכנה

[Is it not possible that] th Rabbis<span class="x" onmousemove="('comment',' R. Simeon b. Gamaliel and R. Ishmael son of R. Johanan b. Beroka.');">¹⁶</span> also only learned it but did not adopt it?<span class="x" onmousemove="('comment',' How then could Rab include them among the four elders?');">¹⁷</span>

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