 ... A 'Sunna' is a practice which has been passed on by a community from generation to generation en masse, whereas the hadith are reports collected by later compilers often centuries removed from the source.... A practice which is contained within the Hadith may well be regarded as Sunna, but it is not necessary that a Sunna would have a supporting hadith sanctioning it.Some sources (Khaled Abou El Fadl) limit hadith to verbal reports, with the deeds of Muhammad and reports about his companions being part of the "sunnah", but not hadith.