Quran

"Allah sent down this Qur'an to command and prevent, and as a sauna to be followed and a parable. It contains your history, information about what came before you, news about what will come after you and correct judgement between you. Repetition does not wear it out and its wonders do not end. It is the Truth. It is not a jest. Whoever recites it speaks the truth. Whoever judges by it is just. Whoever argues by it wins. Whoever divides by it is equitable. Whoever acts by it is rewarded. Whoever clings to it is guided to a straight path. Allah will misguide whoever seeks guidance from other than it. Allah will destroy whoever judges by other than it. It is the Wise Remembrance, the Clear Light, the Straight Path, the Firm Rope of Allah and the Useful Healing. It is a protection for the one who clings to it and a rescue for the one who follows it. It is not crooked and so puts things straight. It does not deviate so as to be blamed. Its wonders do not cease. It does not wear out with much repetition." (At-Tirmidhi).