This is the (most honored, matchless) Book: there is no doubt about it (its Divine authorship and that it is a collection of pure truths throughout). A guidance for the God-revering, pious who keep their duty to God
Allah's Guidance is right before you in the form of this noble Book, recorded by the most honorable scribes appointed by the Messenger (80:13-16). The Almighty Himself guarantees the Truth of this Revelation, its explanation and its preservation. And you will find it free of all contradiction ((4:82), (10:37), (15:9), (29:49), (32:2), (52:2-3), (75:17-19)). Therefore, there is absolutely no question or any doubt about the authority and authenticity of this Glorious Scripture. And, you will soon notice as you proceed, that this Book leaves no lingering doubts in a seeking mind. If you remember that this is a Book of guidance, and hence, treat it as such, the hard fact will dawn upon you that this is The Path-finding Guide for all those who wish to journey through life in blissful honor and security
This is the Book in which there is no doubt. (Since its Author, Allah, the Creator of this universe, possesses complete knowledge, there is no room for doubt about its contents.) It is a guide for those who are God conscious
Dr. Munir Munshey
This is the (divine) book! In it, there is nothing doubtful. (It is) the guidance for the pious
Dr. Kamal Omar
This is Al-Kitab (The Scripture, The Divine Book, The Legitimate Bible, Allah’s Book), no raib (doubtful matter or interpolation) therein, guidance to those who are Al-Muttaqun (the pious and the righteous)
This is the only perfect Book, wanting in naught, containing nothing doubtful, harmful or destructive, there is no false charge in it. It is a guidance for those who guard against evil
This is the Book (the Quran), whereof there is no doubt, a guidance to those who are Al-Muttaqoon (the pious and righteous persons who fear Allah much (abstain from all kinds of sins and evil deeds which He has forbidden) and love Allah much (perform all kinds of good deeds which He has ordained))
This is the Knowledge (Book) of the reality and sunnatullah (the mechanics of the system of Allah), about which there is absolutely no doubt; it is the source of comprehension for those who seek protection.
Sayyed Abbas Sadr-Ameli
This is the (True) Book wherein is no doubt, a guidance to the pious ones
Al-muntakhab fi tafsir al-Qur'an al-Karim
This Book -the Quran- in which Providence is the Guide, occasions no, doubt and represents the spirit of truth guiding into all truth; it guides those: who entertain the profound reverence dutiful to Allah