Reference for Shabbat 69:2
וחילופה בחלתא דאמר רבה חלתא בת תרי כורי שרי לטלטולה ובת תלתא כורי אסור לטלטולה ורב יוסף אמר בת תלתא כורי נמי שרי בת ארבעה כורי אסור
For Rabbah said: A bee-hive of two kors capacity<span class="x" onmousemove="('comment',' One kor = thirty se'ahs = 395,533.2 cu. cent; J.E. XII, 489 (Table). ');"><sup>3</sup></span> may be moved; of three kors capacity, may not be moved. But R. Joseph said: Three kors capacity also is permitted; four kors is forbidden.<span class="x" onmousemove="('comment',' A utensil may be moved on the Sabbath. Rabbah maintains that if it is more than two kors in capacity it ceases to be a utensil, while R. Joseph holds that it is a utensil up to three kors. Thus R. Joseph's standard here is larger than Rabbah's, while in respect to twilight it is smaller. ');"><sup>4</sup></span>