In the realm of worship, fasting and obligatory prayer
constitute the two mightiest pillars of God's holy Law. Neglecting them is in
no wise permitted, and falling short in their performance is of a certainty not
acceptable.
- ‘Abdu’l-Baha (From a Tablet; compilation: ‘The Importance of Obligatory Prayer
and Fasting’, compiled by Research Department of the Universal House of
Justice; published in The American Baha'i, September 2000)