וַיָּ֤קָם בִּלְעָם֙ בַּבֹּ֔קֶר וַיֹּ֙אמֶר֙ אֶל־שָׂרֵ֣י בָלָ֔ק לְכ֖וּ אֶֽל־אַרְצְכֶ֑ם כִּ֚י מֵאֵ֣ן יְהוָ֔ה לְתִתִּ֖י לַהֲלֹ֥ךְ עִמָּכֶֽם׃
And Balaam rose up in the morning, and said unto the princes of Balak: ‘Get you into your land; for the LORD refuseth to give me leave to go with you.’
Read halakhic rulings (Jewish law) on Numbers 22:13: and classical halakhic sources.