The White Days



The White Days or Ayyām al-Bīḍ (ایّام البیض) are specific days of each Islamic month; they are holy days according to the Islamic prophet, Muhammad. These days are the 13th, 14th and 15th of every month in the Islamic calendar. Muslims believe that the white days of the lunar months of Rajab, Sha'ban and Ramadan are very virtuous.

Etymology
There are couple of views on the etymology of this idiom:


 * 1) One is that because the nights in these three days are bright and white due to the fullness of the moon, the days of these three nights have been called the Ayyam al-Beed meaning the white days.

Acts performed on the White Days
Muslims believe the most virtuous practices to perform on the White Days are fasting and spiritual retreat.

Fasting
Fasting on the White Days is recommended according to many Islamic schools of jurisprudence. Muslims believe the reward for fasting on them is as great as fasting the entire year, as the reward for fasting three days is multiplied by 10 times as much or more, making it equivalent to a month, and, if done every month, makes it equivalent to a year, without subtracting from the reward of fasting the entire month.

Abu Dharr narrated the Islamic prophet Muhammad said to him, "If you fast three days from the month, fast the 13th, 14th, and 15th.” Similarly, Qatadah ibn Malhan al-Qaysi narrated Muhammad used to command his companions to fast the days of the white nights: the 13th, 14th, and 15th of the month, saying it is equal to keeping a perpetual fast. It is also narrated Muhammad himself used to consistently fast for three days every month.

A traditional nasheed celebrating the white moon
The Arabic word badr (بدر) means 'full moon', and is often translated as 'white moon.' A traditional nasheed, Talaʽ al-Badru ʽAlayna, celebrates the badr. The main stanza is: