Anything good that happens to you [Prophet] is from God; anything bad is [ultimately] from yourself. We have sent you as a messenger to people; God is sufficient witness.
Qur'an, 4:79
The Messenger has come to you [people] with the truth from your Lord, so believe- that is best for you- for even if you disbelieve, all that is in the heavens
and the earth still belongs to God, and He is all knowing and all wise.
Qur'an, 4:170
Say [Muhammad], "People, I am the Messenger of God to you all, from Him who has control over the heavens and the earth.
There is no God but Him; He gives life and death, so believe in God and His Messenger, the unlettered prophet who believes in God and His words,
and follow him so that you may find guidance."
Qur'an, 7:158
Now has come to you a Prophet from among yourselves; it grieves him that you should perish; ardently anxious is he over you: to the believers he is most kind and merciful.
Qur'an, 9:128
This (Qur’an) is a universal Message for mankind. Let them all know that He is the One and Only One God.
May those who are blessed with intelligence come to their senses and take this warning seriously.
Qur'an, 14:52
Muhammad is not the father of any of your men, but (he is) the Messenger of God, and the Seal of the Prophets: and God has full knowledge of all things.
Qur'an, 33:40
We have sent you [Prophet] only to bring good news and warning to all people, but most of them do not understand.
Qur'an, 34:28
Ya Sin. By the Qur’an, full of Wisdom, Thou art indeed one of the messengers, on a straight way. It is a Revelation sent down by (Him), the Exalted in Might, Most Merciful.
Qur'an, 36:1-5
There are three great and universal things which make known to us our Sustainer. One is the book of the universe. Another is the Seal of the Prophets (peace and blessings be upon him), the supreme sign of the book of the universe. The other is the Qur’an of Mighty Stature. Now we must become acquainted with the Seal of the Prophets (PBUH), who is the second and articulate proof, and must listen to him. Yes, consider the collective personality of this proof: the face of the earth has become his mosque, Mecca his mihrab, and Medina his pulpit. Our Prophet (peace and blessings be upon him), this clear proof, is leader of all the believers, preacher to all mankind, the chief of all the prophets, lord of all the saints. He is a luminous tree whose living roots are all the prophets, and fresh fruits are all the saints; whose claims all the prophets and saints corroborate. For he declares and claims: “There is no god but God!” And all on left and right, that is, those luminous reciters of God’s Names lined up in the past and the future, repeat the same words, and through their consensus in effect declare: “You speak the truth and what you say is right!”