Reference for Yevamot 45:14

הניחא לרבי שמעון דדריש טעמא דקרא אלא לרבנן מנא להו מאן תנא דפליג עליה דרבי יוסי ברבי יהודה רבי שמעון היא:

whence, however, do the Rabbis<span class="x" onmousemove="('comment',' Who do not assign reasons for Biblical precepts unless Scripture itself supplies them. ');">³⁶</span> derive it according to their view?<span class="x" onmousemove="('comment',' The text, For he will turn etc. being required as a reason for the precepts enunciated in that context itself. ');">³⁷</span> — Who is the Tanna<span class="x" onmousemove="('comment',' Designated supra as 'the Rabbis'. ');">³⁸</span> who disputes the opinion of R. Jose son of R. Judah? It is R. Simeon.

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