Catechism of the Catholic Church

The essential rite of Confirmation is anointing the forehead of the baptized with sacred chrism (in the East other sense-organs as well), together with the laying on of the minister's hand and the words: "Accipe signaculum doni Spiritus Sancti" (Be sealed with the Gift of the Holy Spirit.) in the Roman rite, or: Signaculum doni Spiritus Sancti (the seal of the gift of the Holy Spirit) in the Byzantine rite.