Nephi sees the Twelve Old World apostles in a vision; their garments "are made white" in Christ's blood.
1 Nephi 12:10, The Book of Mormon, The Church of Jesus Christ of Latter-Day Saints, accessed August 3, 2022
10 And these twelve ministers whom thou beholdest shall judge thy seed. And, behold, they are righteous forever; for because of their faith in the Lamb of God their garments are made white in his blood.