Reference for Yoma 159:15

מי עדיפא ממתניתין דאוקימנא כדי שיראה הכי נמי כדי שיראה אי הכי היינו ר"א איכא בינייהו מלא לוגמיו דחוק

But Scripture said: These are the commandments,<span class="x" onmousemove="('comment',' Lev. XXVII, 34: These are the laws, i.e., no others may ever be offered.');">¹⁷</span> which means that no prophet is permitted to introduce any new law from then on? - Rather: They were forgotten and then they established them anew.

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