The eminent Muslim scholar and renowned Da`iyah, Sheikh `Abdel Khaliq Hasan Ash-Shareef, states:

“It was reported by mutwatir hadiths (constant and authentic chain of transmission) that Almighty Allah prescribed on us 5 Prayers per day. By and large, the Qur’an sets the general rules without details. For example, there is no mention in the Qur’an that there are five obligatory prayers to be performed daily. Nor is the number of rakh`ahs of each prayer specified, as well as the percentage to be paid in Zakah; the details in the rituals of Hajj, and other such ordinances and dealings. All of these details are profoundly dealt with in the Sunnah.

So, the Sunnah explains the general rules of the Qur’an and is a primary and independent source according to the text of the Qur’an and the unanimous agreement of all Muslim scholars. Almighty Allah says, “And whatsoever the messenger giveth you, take it. And whatsoever he forbiddeth, abstain (from it).” (Al-Hashr : 7)