CHAPTER: EXCELLENCE OF OBSERVING FAST FOR SIX DAYS IN THE MONTH OF SHAWWAL AFTER RAMADAN
Abu Ayyub al-Ansari (Allaah be pleased with him) reported Allaah's Messenger (sallAllaahu alayhi wa sallam) 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.
Abu Ayyub al-Ansari reported (through another chain of transmitters): I heard Allaah's Messenger (sallAllaahu alayhi wa sallam) saying like this.
Abu Ayyub reported a hadith like this (through another chain of transmitters).