Reference for Pesachim 31:4

הניחא לשמואל דאמר דכן מלטמא טומאת אחרים אבל טומאת עצמן יש להן שפיר אלא לרב דאמר דכן ממש מאי איכא למימר

surely it was taught: R'Eleazar said: Liquids have no uncleanness at all [by Scriptural law]; the proof is that Jose B'Jo'ezer of Zeredah<span class="x" onmousemove="('comment',' V. Cambridge Bible I Kings XI, 26.');">⁵</span> testified<span class="x" onmousemove="('comment',' On the historic occasion when as a result of a dispute between R. Gamaliel and R. Joshua the former was deposed from the Patriarchate and R. Eliezer b. 'Azariah appointed in his stead. An examination was then made of scholars' traditions, and they were declared valid or otherwise; v. 'Ed., Sonc. ed., Introduction, xi.');">⁶</span>

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