What did the Prophet Muhammad (saw) say about those who observe the fast of Ramadan and follow it with six fasts of Shawwal?
 Abu Ayyub al-Ansari (Allah be pleased with him) reported Allah's Messenger (may peace be upon him) as saying:                      He who observed the fast of Ramadan and then followed it with six (fasts) of Shawwal. it would be as if he fasted perpetually.