The importance of the Hadith lies in the fact that it _____

A.

Supplements the Qu'ran and serves as a second source of Islamic law

B.

Was recorded and collected authentically

C.

Was officially collected by Muslim Caliphs

D.

Provides reliable information on thr biography of the Prophet (SAW)

Correct answer is A

Several hadith (oral traditions concerning the words and deeds of the Islamic prophet Muhammad) indicate the importance as sources of Islam not only the Quran (the revelation of God to Muhammad, infallible but containing compressed information), but also of the Sunnah (a detailed explanation of the everyday application of the principles established in the Qur'an, based on hadith). One of these hadith quotes Muhammad as saying (in his Farewell Sermon:
I have left with you two things which, if you follow them, you will never go astray: the Book of God and the sunna of His Prophet.