Does Quran have EVERYTHING we need for our religion, our salvation ? The answer can be found in the Quran itself. Let us find out.
[6:114] Shall I seek other than GOD as a source of law, when He has revealed to you this book FULLY DETAILED? Those who received the scripture recognize that it has been revealed from your Lord, truthfully. You shall not harbor any doubt.
[6:115] The word of your Lord is COMPLETE, in truth and justice. Nothing shall abrogate His words. He is the Hearer, the Omniscient.
[16:89] The day will come when we will raise from every community a witness from among them, and bring you as the witness of these people. We have revealed to you this book to provide EXPLANATIONS FOR EVERYTHING, and guidance, and mercy and good news for the submitters.
[6:38] ..We did not leave anything out of this book..
[12:111] In their history, there is a lesson for those who possess intelligence. This is not fabricated Hadith; this (Quran) confirms all previous scriptures, provides the DETAILS of EVERYTHING, and is a beacon and mercy for those who BELIEVE.
[10:37] "This Quran could not possibly be authored by other than GOD.It confirms all previous messages, and provides a FULLY DETAILED scripture. It is infallible, for it comes from the Lord of the universe." 10:37
[6:126] This is the straight path to your Lord. We have DETAILED the revelations for people who TAKE HEED.
[7:52] We have given them a scripture that is FULLY DETAILED, with knowledge, guidance, and mercy for the people who believe.
[6:19] Say, 'Whose testimony is the greatest?' Say, 'God's. He is the witness between me and you that THIS Quran has been inspired to me, to preach to you and whomever it reaches. Indeed, you bear witness that there are other gods beside God.' Say, 'I do not testify as you do; there is only one god, and I disown your idolatry.