Directives From the Guardian
Page 44
 

118: MARRIAGE, BAHÁ'Í (Consent of Parents-- duty of Assembly to ascertain validity)
 
1

"With reference to the matter of the consent of the parents to a Bahá'í marriage: As this is a vital binding obligation, it is the duty of the Assemblies to ascertain, before giving their sanction, that the consent obtained has been given freely by the parents themselves."