Halakhah zu Bamidbar 16:26
וַיְדַבֵּ֨ר אֶל־הָעֵדָ֜ה לֵאמֹ֗ר ס֣וּרוּ נָ֡א מֵעַל֩ אָהֳלֵ֨י הָאֲנָשִׁ֤ים הָֽרְשָׁעִים֙ הָאֵ֔לֶּה וְאַֽל־תִּגְּע֖וּ בְּכָל־אֲשֶׁ֣ר לָהֶ֑ם פֶּן־תִּסָּפ֖וּ בְּכָל־חַטֹּאתָֽם׃
Er redete zu der Gemeinde also: Weichet doch von den Zelten dieser frevelhaften Männer und berührt nichts, was ihr ist, dass ihr nicht weggerafft werdet durch all ihre Sünden.
Sefer Chasidim
One should not travel with a wicked person neither on the same road, nor on the same ship lest he be damaged on his account. Don't hang around with a wicked person who causes damage to many (neither on a road nor on a ship) as is written "... So that you won't perish because of their wicked deeds" (Bemidbar 16:26)
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