Right to freedom of thought, conscience and religion
Section 38(2) · 1999 Constitution (2004 edition)
What Constitution says
(2) No person attending any place of education shall be required to receive religious instruction or to take part in or attend any religious ceremony or observance if such instruction ceremony or observance relates to a religion other than his own, or religion not approved by his parent or guardian.
This is the 1999 Constitution as published in 2004. Later amendments aren't included yet, so a section may have changed since.
Original source
Official Gazette · CFRN 1999 official PDF · printed page 38. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections