FASTING IN SHAWWAL
Prophet Muhammad (SAW) said, “Whoever observes the Ramadan fast and follows it with six days of fast in Shawwal, it is as if he has fasted Dahr (the whole year)”.
(Sahih Bukhari and Sahih Muslim)
Shawwal is the tenth month in the lunar calendar. The first of Shawwal is Eidul Fitr. After the festivity of Eid it is recommended to observe six days of fast. This fast may be observed continuously non-break, or it may be observed one day at a time.