Bhagavan Buddha rejected the scriptures, and even Sage Sankara indicated that the ultimate truth lies beyond religion, the concept of God, and the scriptures.+

Sage Sankara says:~ VC-59- The study of the Scriptures is useless so long as the highest Truth is unknown, and it is equally useless when the highest Truth has already been known.

Sage Sankara indicates that scriptural studies are useless in the pursuit of truth, therefore, it is no use of indulging in scriptural studies and wasting their precious time and life.   

 Even Upanishads also confirm this:~  

Katha Upanishad:~  This Ataman cannot be attained by the study of the Vedas, or by intelligence, or by much hearing of sacred books. It is attained by him alone whom It chooses. To such a one Atman reveals Its own form. (Ch-II -23-P-20)

Mundaka Upanishad:-This Ataman cannot be attained through study of the Vedas, nor through intelligence, nor through much learning. He who chooses Ataman—by him alone is Atman attained. It is Ataman that reveals to the seeker Its true nature.   (3-page -70 Upanishads nililaananda) 

The scriptures indicate that Atman is Brahman and Brahman is the ultimate truth. Therefore, the soul, which is in the form of consciousness, is the ultimate truth.  Thus realizing the ultimate truth is the prime goal.   A well-directed inquiry, analysis, and reasoning will lead one to his non-dual destination.

Self-Realization is a direct realization of the ultimate truth or real god, in contrast with traditional paths, which are indirect. And the other paths cannot lead to the ultimate destination, because they are based on the false self (you or ego), which they hold as a real self, and false experience (world)  as reality.  

Scriptures are being added from time to time. This process will go on. There is no final authority among them? One contradicts the other: duality reigns supreme. 

Bhagavan Buddha rejected the Vedas, religion, and the concept of God and yoga, and he clearly said: ~  Believe nothing just because a so-called wise person said it. Believe nothing just because a belief is generally held. Believe nothing just because it is said in ancient books. Believe nothing just because it is said to be of divine origin. Believe nothing just because someone else believes it. Believe only what you yourself test and judge to be true.

Sage Sankara:~ 'like a servant who carries a lamp in front of you to find your way, and you have found it, so becomes the Veda to that person. What is the Veda? -- utterances of those who have known the Truth. Here is one who has known the Truth; why should he or she depend upon the Veda further? Actual realization takes you beyond books. At a certain stage, books become a botheration. The Upanishad itself says that the 'words are only so much of the distraction for such minds'.

The scriptural knowledge is not of any use in the pursuit of truth. Self-knowledge cannot be attained by the study of the scriptures and intellectual understanding or by bookish knowledge.  Therefore,  there is no use in studying the scriptures and other scriptures to acquire the Advaitic wisdom.  That is why Bhagavan Buddha rejected the scriptures, and even Sage Sankara indicated that the ultimate truth lies beyond religion,  the concept of God, and the scriptures.

There is only one Reality to be known, the same for all seekers, but the ways to it, are hidden by religion.  Self-discovery is the only way, towards the non-dualistic or Advaitic truth without any religious doctrines, which will help the seekers to unfold the mystery of the illusion in which we all are searching for the truth of our true existence.

An ignorant is always egocentric. He thinks what he knows is the truth.  The ignorant always indulge in the pursuit of an argument. An ignorant is sentimentalized to his belief system.  An ignorant person just to prove that he is correct and others are wrong because the ignorant presumes he already knows and wants to see whether others know or not. 

The ignorant person provokes others to snub them. Ignorants accumulate knowledge and try to show their intellectual wealth. Such intellectual sharing of knowledge is mere garbage. It is of no use in the pursuit of truth. Because they are egocentric based on ignorance thus they will not yield any truth.

Scriptures deal only with the Objects, the Seen, not with the Seer. If one starts with the idea that Samsara (universe) exists, he can never see Atman, because Samsara is an illusion and only ignorant people read it as a reality

Hence,  Sage Sankara: ~ VC~63 ~ "Without knowing and examining the external world, one can’t know the Truth, as the idea that the external world exists, won't go. It can go only by an inquiry into the nature of the external world.

Sage Sankara himself says: ~ VC ~ 56- Neither by Yoga, nor by Sankhya, nor by work, nor by learning, but by the realization of one's identity with Brahman is Liberation possible, and by no other means. 

58. Loud speech consisting of a shower of words, the skill in expounding the Scriptures, and likewise erudition - these merely bring on a little personal enjoyment to the scholar but are no good for Liberation.

59. The study of the Scriptures is useless so long as the highest Truth is unknown, and it is equally useless when the highest Truth has already been known.

60. The Scriptures,  consisting of many words are a dense forest that merely causes the mind to ramble. Hence, men of wisdom should earnestly set about knowing the true nature of the Self.

61. For one who has been bitten by the serpent of Ignorance, the only remedy is the knowledge of Brahman. Of what avail are the Vedas and (other) Scriptures, Mantras (sacred formulae), and medicines to such a one?

62. A disease does not leave off if one simply utters the name of the medicine, without taking it; (similarly) without direct realization, one cannot be liberated by the mere utterance of the word Brahman.

64. Without killing one’s enemies, and possessing oneself of the splendor of the entire surrounding the region, one cannot claim to be an emperor by merely saying, ‘I am an emperor’.

65. As a treasure hidden underground requires (for its extraction) competent instruction, excavation, the removal of stones and other such things lying above it, and (finally) grasping, but never comes out by being (merely) called out by name, so the transparent Truth of the self, which is hidden by Maya and its effects, is to be attained through the instructions of a knower of Brahman, followed by reflection, meditation and so forth, but not through perverted arguments.

66. Therefore, the wise should, as in the case of disease and the like, personally strive by all the means in their power to be free from the bondage of repeated births and deaths.

Then where is the need for the scriptures, religion, and idea of God?  One has to be more rational to realize the Advaitic truth, which is the ultimate truth or scientific truth. Thus, the seeker has to drop all the accumulated knowledge and start fresh. 

Realizing the universe is created out of single stuff and that single stuff is the soul, which is present in the form of consciousness leads to non-dualistic or Advaitic self-awareness. Self-awareness is freedom or Moksha. Moksha is unity in diversity in the midst of duality.:~Santthosh Kumaar