עַל־פִּ֨י הַתּוֹרָ֜ה אֲשֶׁ֣ר יוֹר֗וּךָ וְעַל־הַמִּשְׁפָּ֛ט אֲשֶׁר־יֹאמְר֥וּ לְךָ֖ תַּעֲשֶׂ֑ה לֹ֣א תָס֗וּר מִן־הַדָּבָ֛ר אֲשֶׁר־יַגִּ֥ידֽוּ לְךָ֖ יָמִ֥ין וּשְׂמֹֽאל׃
De acordo com a Torá que eles te ensinarem e o juízo que eles te disserem, assim farás; não te desviarás da palavra que eles te disserem, nem para a direita nem para a esquerda.
Megillat Ta'anit
The Tzaddukim had a book of laws - "These are stoned, these are burned, these are killed by sword, these are stangled." When it was written, a person would ask (what to do) and go look in the book. If you asked them, "How do you know this one is stoned or burned or decapitated or strangled?", they wouldn't be able to bring a proof from the "the instructions given to you" (Devarim 17:11). Because we don't write laws in a book. ... The day that it was destroyed, they made a holiday.