Al-Sunnah a harshen larabci tana nufin hanya, kuma a cikin shari'ah tana nufin sunayen wasu ibadodi masu nafila da aka karɓo daga Annabi ﷺ. Sunnah kuma ita ce sunan abin da ya fito daga Manzon Allah ﷺ na magana, aiki da amincewa. Idan muka yi magana a kan dalilan shari'ah, to duk wannan shi ne Sunnah, kuma duk abin da aka karɓa ta hanyar wahayi ne. Allah Ta'ala ya ce: {Kuma ba ya magana da son zuciyarsa} {Ba wani abu ba ne face wahayin da aka saukar masa} Suratul Najm, aya ta 3, kuma Ya ce: {Ka ce: "Ina gargaɗe ku ne kawai da wahayi…"} Suratul Anbiya'i, aya ta 45.

Al–Sunnah linguistically is the method, and in the shari'ah it is the name of some of the supererogatory worships transferred from the Prophet (SAW), and the Sunnah is the name of what came from the messenger (SAW) of saying, action and approval, when we talk about the shari'ahi evidences, all that is the sunnah and it is all what is received by the revelation, Allah Ta'ala said: {Nor does he say (aught) of (his own) Desire} {It is no less than inspiration sent down to him} 3 Surat Al-Najm, and He Ta'ala said: to according you warn but do I :Say revelation…} 45 Surat Al-Anbia'.