Reference for Eruvin 117:4

שלא אמרו חכמים את הדבר להחמיר אלא להקל: והתניא לא אמרו חכמים את הדבר להקל אלא להחמיר

SINCE THE SAGES DID NOT ENACT THE LAW IN ORDER TO ADD RESTRICTIONS BUT IN ORDER TO RELAX THEM. But was it not taught: The Sages did not enact the law in order to relax restrictions but in order to impose them? - Rabina replied. The meaning<span class="x" onmousemove="('comment',' Of the Baraitha just cited.');">⁸</span>

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