48:9
That you may believe in Allah and His Messenger and (may) honor him and respect him and glorify Him morning and evening.

5:12
And certainly took Allah a Covenant (from the) Children (of) Israel and We appointed among them two (and) ten (i.e twelve) leaders. And said Allah, "Indeed, I (am) with you, if you establish the prayer and give the zakah and you believe in My Messengers and you assist them and you loan (to) Allah a loan goodly, surely I will remove from you your evil deeds and I will surely admit you (to) gardens flow from underneath them the rivers. But whoever disbelieved after that among you, then certainly he strayed (from) the way, the right.

7:157
Those who follow the Messenger, the Prophet, the unlettered, whom they find him written with them in the Taurat and the Injeel. He commands them to the right and forbids them from the wrong, and he makes lawful for them the pure things and makes unlawful for them the impure things and he relieves from them their burden and the fetters which were upon them. So those who believe in him and honor him, and help him and follow the light which has been sent down with him. Those (are) [they] the successful ones."