Basics Of Sunnah
Sunnah is the legacy of Muslims, who unanimously act upon it across the world. The Books of Fiqh record these Sunnah as already present in society. The Books of Fiqh are not books of narrations that need chains of narrators; they are different. They discuss a problem in Sunnah. For example, they discuss prayer, fasting, Hajj, etc, and determine which part of them are farz, or not farz, and if someone misses a part of it, how he can compensate it. if there is a new situation, how one would act upon a sunnah, etc.