[1] Muslims believe that the white days of the lunar months of Rajab, Sha'ban and Ramadan are very virtuous.
[2][3] This idiom has originated from the idea that the nights in these three days are bright and white due to the fullness of the moon.
[citation needed] Muslims believe the most virtuous practices to perform on the White Days are fasting and spiritual retreat.
[4] Fasting on the White Days is recommended according to many Islamic schools of jurisprudence.
Tala’al-badru ‘alayna Min thaniyyatil-wada’ Wajaba al-shukru ‘alayna Ma da’a lillahi da’ O the white moon rose over us from the valley of Wada And we owe it to show gratefulness Where the call is to God