וַתִּקַּ֣ח רִ֠בְקָה אֶת־בִּגְדֵ֨י עֵשָׂ֜ו בְּנָ֤הּ הַגָּדֹל֙ הַחֲמֻדֹ֔ת אֲשֶׁ֥ר אִתָּ֖הּ בַּבָּ֑יִת וַתַּלְבֵּ֥שׁ אֶֽת־יַעֲקֹ֖ב בְּנָ֥הּ הַקָּטָֽן׃
And Rebekah took the choicest garments of Esau her elder son, which were with her in the house, and put them upon Jacob her younger son.
Read halakhic rulings (Jewish law) on Genesis 27:15: and classical halakhic sources.