The word(s) "warner" appears 57 time(s) in 53 verse(s) in Quran in Muhammad Pickthal translation.

(1) Lo! We have sent thee (O Muhammad) with the truth, a bringer of glad tidings and a warner. And thou wilt not be asked about the owners of hell-fire.

(2) Mankind were one community, and Allah sent (unto them) prophets as bearers of good tidings and as warners, and revealed therewith the Scripture with the truth that it might judge between mankind concerning that wherein they differed. And only those unto whom (the Scripture) was given differed concerning it, after clear proofs had come unto them, through hatred one of another. And Allah by His Will guided those who believe unto the truth of that concerning which they differed. Allah guideth whom He will unto a straight path.

(3) O People of the Scripture! Now hath Our messenger come unto you to make things plain unto you after an interval (of cessation) of the messengers, lest ye should say: There came not unto us a messenger of cheer nor any warner. Now hath a messenger of cheer and a warner come unto you. Allah is Able to do all things.

(4) We send not the messengers save as bearers of good news and warners. Whoso believeth and doeth right, there shall no fear come upon them neither shall they grieve.

(5) Have they not bethought them (that) there is no madness in their comrade? He is but a plain warner.

(6) Say: For myself I have no power to benefit, nor power to hurt, save that which Allah willeth. Had I knowledge of the Unseen, I should have abundance of wealth, and adversity would not touch me. I am but a warner, and a bearer of good tidings unto folk who believe.

(7) (Saying): Serve none but Allah. Lo! I am unto you from Him a warner and a bringer of good tidings.

(8) A likely thing, that thou wouldst forsake aught of that which hath been revealed unto thee, and that thy breast should be straitened for it, because they say: Why hath not a treasure been sent down for him, or an angel come with him? Thou art but a warner, and Allah is in charge of all things.

(9) And We sent Noah unto his folk (and he said): Lo! I am a plain warner unto you.

(10) Those who disbelieve say: If only some portent were sent down upon him from his Lord! Thou art a warner only, and for every folk a guide.