Exodus 29:21, 29

And thou shalt take of the blood that is upon the altar, and of the anointing oil, and sprinkle it upon Aaron, and upon his garments, and upon his sons, and upon the garments of his sons with him: and he shall be hallowed, and his garments, and his sons, and his sons’ garments with him.

And the holy garments of Aaron shall be for his sons after him, to be anointed in them, and to be consecrated in them.