Reference for Shabbat 41:6
איתיביה כרך דבר שמדליקין בו ע"ג דבר שאין מדליקין בו אין מדליקין בו (אמר) רשב"ג של בית אבא היו כורכין פתילה על גבי אגוז ומדליקין קתני מיהת מדליקין
He raised an objection: if one wraps a material which may be used [as a wick] for lighting around a material which may not be lit, one must not light therewith. R. Simeon b. Gamaliel said: In my father's house a wick was wound over a nut and they did light therewith. Thus he teaches that one may light!<span class="x" onmousemove="('comment',' Though a nut itself is not fit. ');"><sup>9</sup></span> — He replied: Instead of refuting me by R. Simeon b. Gamaliel's view, support me by the first Tanna's [ruling]!- That is no difficulty: an act is [more] weighty.<span class="x" onmousemove="('comment',' Lit., 'an act is a teacher'. Since R. Simeon b. Gamaliel relates that this was actually done, it must be presumed that this is the halachah, for an individual did not act upon his view in opposition to the majority ');"><sup>10</sup></span>