This is indicated in the Qur’an...

This is indicated in the Qur’an: “…that thou mayest make clear unto mankind what hath been sent down unto them…” And the Sunnah in meaning is referred to the Book, as it is the elaboration of its generality, and exposition of its ambiguity, and elucidation of its concised statements. It (the Sunnah) is in short the exposition of the Book outright. This is indicated in Almighty’s words: “…and We sent down unto thee the Remembrance (i.e.

the Qur’an) that thou mayest make clear unto mankind what hath been sent down unto them.” No issue or point can be found in the Sunnah, 21 unless that meaning has been indicated generally or elaborately. Further, whatever indicating the Qur’an’s being the universality of the Shar’ah 22 (Islamic Law), and a fountain for it, is verily an evidence indicating this fact.

Also since Allah said: “And most certainly thou standest on sublime morality,” which was interpreted by A’ishah that his morality being the Qur’an itself no more no less. This indicates that his utterances, acts and approval are altogether taken from the Qur’an.

And since morality is represented only by these things and as Allah has made the Qur’an an explanation for everything, 23 the fact requiring that the Sunnah being contained in it on the whole, as bidding and forbidding being the first things revealed in the Book. And like His saying: “We have not neglected in the Book anything,” 24 and His saying: This day have I perfected for you, your religion with which intending to mean the revelation of the Qur’an.

As a conclusion, Sunnah then is an exposition of what the Book contains, the fact giving the meaning of its (Sunnah) being referred to it (Book), that was confirmed too through investigation.

In the outset of the book al-Adillah, it was proved that the Sunnah being dependent on the Book, otherwise it should have never been approved, which is a sufficient principle in this regard.” He added: The cause behind heeding to the Sunnah lies in its being an exposition of the Qur’an, as to obey Allah is to abide by the rules of His Book, and to obey the Messenger is to act according to his expositions of the Book of Allah through saying, or deed, or judgement.