Al-Sunnah kwa lugha ina maana ya njia (mwenendo), na katika sharia ni jina la baadhi ya ibada za hiari (sunnah) zilizopokelewa kutoka kwa Mtume ﷺ. Sunnah pia ni jina la yale yaliyotoka kwa Mjumbe ﷺ ya kauli, vitendo na kukubali kwake. Tunapozungumzia dalili za kisharia, yote hayo ni Sunnah, na yote hayo ni yale yanayopokelewa kwa Wahyi. Allah Ta'ala amesema: {Wala hasemi kwa matamanio yake} {Haikuwa isipokuwa ni Wahyi unaoteremshwa kwake} Sura An-Najm, aya ya 3-4. Naye Ta'ala amesema: {…Je, nyinyi mnaonya, na je, mimi nasema nini zaidi ya Wahyi?} Sura Al-Anbiya, aya ya 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'.