Whoever speaks by it has spoken the truth, whoever judges by it has acted justly, whoever argues by it has prevailed, and whoever calls to it and holds fast to it has been guided to a straight path.

Similarly, what was cited by the author of the book (Al-Taliqan), saying: And in a report on the authority of Abu Sa'id al-Khudri, who said: The Commander of the Faithful—peace be upon him—was asked about the Quran, and he said: "It has an exoteric (zahir) and an esoteric (batin), and each of them has a back and a belly, and for every limit there is a vantage point. Its exoteric is elegant, and its esoteric is deep; its marvels never perish, its wonders never cease, and its benefits are never exhausted. It contains the rising places of blessings, the lamps for darkness, and the keys to words. Good deeds are not opened except with its key, and tribulations are not uncovered except through its inner meanings; within it is the knowledge of what was and what will be."

The Exalted said: {What is this book that leaves nothing small or great except that it has enumerated it? And they will find what they did present [before them]. And your Lord does injustice to no one} (Al-Kahf 49).

And His saying, the Exalted: {If We had sent down this Qur'an upon a mountain, you would have seen it humbled and coming apart from fear of Allah. And these examples We present to the people that perhaps they will give thought} (Al-Hashr 21).