“And it was not [possible] for this Qur’an to be produced by other than Allah , but [it is] a confirmation of what was before it and a detailed explanation of the [former] Scripture, about which there is no doubt, from the Lord of the worlds.” -Qur’an. 10:37 Sahih International Translation
“If they charge thee with falsehood/deny you (O Muhammad), say: “My work to me, and yours to you! ye are free from responsibility for what I do, and I for what ye do!” -Qur’an. 10:41
“O mankind! there hath come to you a direction from your Lord and a healing for the (diseases) in your hearts,- and for those who believe, a guidance and a Mercy.” -10:57
“In whatever business thou mayest be, and whatever portion thou mayest be reciting from the Qur’an,- and whatever deed ye (mankind) may be doing,- We are witnesses thereof when ye are deeply engrossed therein. Nor is hidden from thy Lord (so much as) the weight of an atom on the earth or in heaven. And not the least and not the greatest of these things but are recorded in a clear record.
Behold! verily for the friends of Allah there is no fear, nor shall they grieve” -10:61-62
(the whole chapter is recited in the above video:)