March 31

To offer contributions towards this end [in support of the activities of the Spiritual Assembly] is one of the pressing requirements of the Cause of God, is deemed highly essential, and is of fundamental importance. Next to the payment of the Huqúq it is the obligation of every Bahá'í.
- Shoghi Effendi  (From a letter dated 27 February 1923, translated from the Persian; Compilation of Compilations, vol. I, Huququ’llah)