ON THE SUBJECT OF 228 THE VIRTUE OF FASTING ON THE FIRST SIX DAYS OF SHAWAL; VALUE OF FASTING SIX DAYS AFTER RAMADAN IN SHAWAL H 1280 "Whosoever observes the fast throughout Ramadan and then follows it by fasting six days of Shawal is as if he had fasted throughout the year." R 1280 Muslim with a chain up to Abu Ayoub who related that the Messenger of Allah, praise and peace be upon him, said this.
باب استحباب صوم ستة أيام من شوال 1254- عن أَبي أيوب رضي الله عنه : أنَّ رسولَ الله صلى الله عليه وآله وسلم ، قَالَ : "مَنْ صَامَ رَمَضَانَ ثُمَّ أتْبَعَهُ سِتّاً مِنْ شَوَّالٍ ، كَانَ كَصِيَامِ الدَّهْرِ" رواه مسلم .