March 2

But, at present—and to this the Guardian wishes to draw your careful attention—no Assembly nor even he himself can have the right of enacting any law supplementing those of the Aqdas except in exceptional circumstances when the Authorities require it. And even in such a case the enactment is purely temporary. The only body which is empowered to legislate in such matters is the International House of Justice, and the Guardian can take part in such legislation only in his capacity as a member of that body. Just as the power of interpreting the Writings is the sole right and prerogative of the Guardian, so also the power of legislation has been invested by Bahá’u’lláh solely in the International House of Justice. Thus there is a clear distinction between the powers of legislation and interpretation, though the two are closely related. 

- Shoghi Effendi  (From a letter dated 6 July 1935 written on behalf of Shoghi Effendi to an individual believer; compilation: ‘The Universal House of Justice’, by the Research Department of the Universal House of Justice, February 2021; Online Baha’i Reference Library of the Baha’i World Center)