וַיִּזְבַּ֥ח בָּלָ֖ק בָּקָ֣ר וָצֹ֑אן וַיְשַׁלַּ֣ח לְבִלְעָ֔ם וְלַשָּׂרִ֖ים אֲשֶׁ֥ר אִתּֽוֹ׃
And Balak sacrificed oxen and sheep, and sent to Balaam, and to the princes that were with him.
Read halakhic rulings (Jewish law) on Numbers 22:40: and classical halakhic sources.