"Guiding (4) to the Right Way. So, we believe (5) in it and we do not Commit polytheism (6), with our Lord."
4. It provides guidance for the correction of beliefs as well as the correction of deeds. Thus, guidance signifies guidance of both. This sentence has many meanings.
5. This means to believe in the Holy Qur'an, or through the Holy Qur'an believe in the possessor of the Holy Qur'an. In the Kalimah Tayyibah and the questions in the grave, only two articles of faith are reflected i.e. the Oneness of Allah Almighty (Tauheed) and the Prophethood of the Holy Prophet (Risaalat) and about the Day of Judgement, the Angels, etc.
From this we learn that these two are the true basis of faith. If you declare belief in them the other articles would be included therein. It is possible in BIHI the letter BA may be one of causes, which may mean that through this Qur'an, people have brought faith the Holy Prophet صلى الله عليه وآله وسلم on
6. This means in the future, too, we will remain believers. Hence, the same happened. The end of all of them was on faith. This tells us that the good opinion of the believer is always correct. We also learn that to say "If Allah wills" in ones heart at times is sufficient because they had not said "If Allah wills" verbally.