Vatican documents on Pre-Cana?

My girlfriend and I are both Roman Catholics. I know that attending Pre-Cana (or pre-marriage counseling, as it is sometimes called) is a regular practice among Catholics. However I was wondering **which (if any) Vatican documents mention Pre-Cana as a requirement for engaged couples?** Any leads would be appreciated! –––––––––––– Edit: *Vatican Code of Canon Law, Title VII: Marriage, Chapter I: Pastoral Care and Those Things Which Must Precede The Celebration of Marriage* states that pastors are obliged to offer assistance especially by: > "personal preparation to enter marriage, which disposes the spouses to the holiness and duties of their new state." (Can. 1063) But this seems rather vague. Perhaps someone knows of a more precise passage?