וַיְהִי֩ בַיּ֨וֹם הַשְּׁלִישִׁ֜י בִּֽהְיוֹתָ֣ם כֹּֽאֲבִ֗ים וַיִּקְח֣וּ שְׁנֵֽי־בְנֵי־יַ֠עֲקֹב שִׁמְע֨וֹן וְלֵוִ֜י אֲחֵ֤י דִינָה֙ אִ֣ישׁ חַרְבּ֔וֹ וַיָּבֹ֥אוּ עַל־הָעִ֖יר בֶּ֑טַח וַיַּֽהַרְג֖וּ כָּל־זָכָֽר׃
And it came to pass on the third day, when they were in pain, that two of the sons of Jacob, Simeon and Levi, Dinah’s brethren, took each man his sword, and came upon the city unawares, and slew all the males.
Zohar
Rabbi Shimeon began with the verse: "and he took Shimeon from them, and bound him in front of them" (Genesis 42:24). And what did Yosef see that he showed partiality in Shimeon more than the brothers? Rather, Yosef said: in every place Shimeon (and Levi) are, there is an opening for strict judgment, and at that moment when I went from my father to my brothers, Shimeon opened the strict judgment [against me], as it is written "a man said to his brother here comes that dreamer, come now etc" (Genesis 37:19-20), and before, in Shechem, "and the sons of Yaakov, Shimeon and Levi, each man took" (Genesis 34:25) - all was in strict judgment. It is better to select this one, and not to stir up fights among all the tribes.