Reference for Eruvin 85:5

אלא אי אמרת פליגי האי רצו להחמיר איסורא הוא

From the statement: IT ONCE HAPPENED THAT THEY WERE COMING FROM BRINDISI AND, WHILE THEIR SHIP WAS SAILING IN THE SEA, R'GAMALIEL AND R'ELEAZAR B. AZARIAH WALKED ABOUT THROUGHOUT ITS AREA BUT R'JOSHUA AND R'AKIBA DID NOT MOVE BEYOND FOUR CUBITS BECAUSE THEY DESIRED TO IMPOSE A RESTRICTION UPON THEMSELVES. Now if it be granted that there is no difference of Opinion between them<span class="x" onmousemove="('comment',' The Tannas mentioned.');">⁷</span>

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