Deuteronomy 22:11 KJV
Thou shalt not wear a garment of divers sorts, as of woollen and linen together.
Deuteronomy 22:11, King James Version
In context
10 Thou shalt not plow with an ox and an ass together.
11 Thou shalt not wear a garment of divers sorts, as of woollen and linen together.
12 Thou shalt make thee fringes upon the four quarters of thy vesture, wherewith thou coverest thyself.