In Islam, the “white days” refer to the 13th, 14th, and 15th days of each lunar month. These days are known as the “Ayyam al-Beed,” which translates to the “bright” or “white” days.
Muslims believe that these days are particularly blessed, and they are encouraged to fast on the 13th, 14th, and 15th of each month as a way of seeking forgiveness and earning blessings from Allah. Fasting on these days is not mandatory, but it is considered a recommended act of worship.
The white days of each lunar month are also associated with a special night prayer called the Salat al-Ragha’ib, which is performed on the first Friday of the month of Rajab.
Overall, the white days are considered a time of increased blessings and opportunities for worship in the Islamic calendar.