February 25

In 'The Bahá'í World', Vol. XV, p. 691 we read: “Bahá'u'lláh designated those days as the 'Ayyam-i-Ha and ordained that they should immediately precede the month of 'Ala, which is the month of fasting. He enjoined upon His followers to devote these days to feasting, rejoicing, and charity.” 
- The Universal House of Justice  (From a letter written on behalf of the Universal House of Justice to an individual believer, January 18, 1982; compilation: ‘Lights of Guidance’)