Reference for Bava Batra 191:8

כגון דאשתכח חלא סיפתקא דאי לאו דעקר תלתא יומי לא הוה משתכח חלא סיפתקא

The scholars of the South [of Palestine] taught in the name of R. Joshua b. Levi: [During the] first [three days it is regarded as] certainly wine.<span class="x" onmousemove="('comment',' R. Joshua holds the same views as R. Johanan. ');">¹⁴</span> [During the] last [three days, as] certainly vinegar. [During the] intervening [days as] doubtful. Is not this self-contradictory? [Since] you said that [during the] first [three days it is regarded as] certainly wine, it is obvious that [if the] odour is vinegar and the taste wine, [it is regarded as] wine;<span class="x" onmousemove="('comment',' Cf. R. Johanan's reason. ');">¹⁵</span>

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