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

(41) Say: I am no new thing among the messengers (of Allah), nor know I what will be done with me or with you. I do but follow that which is inspired in me, and I am but a plain warner.

(42) And make mention (O Muhammad) of the brother of A'ad when he warned his folk among the wind-curved sandhills - and verily warners came and went before and after him - saying: Serve none but Allah. Lo! I fear for you the doom of a tremendous Day.

(43) Lo! We have sent thee (O Muhammad) as a witness and a bearer of good tidings and a warner,

(44) Nay, but they marvel that a warner of their own hath come unto them; and the disbelievers say: This is a strange thing:

(45) Therefor flee unto Allah; lo! I am a plain warner unto you from him.

(46) And set not any other god along with Allah; lo! I am a plain warner unto you from Him.

(47) This is a warner of the warners of old.

(48) (Unto their warner it was said): To-morrow they will know who is the rash liar.

(49) As it would burst with rage. Whenever a (fresh) host is flung therein the wardens thereof ask them: Came there unto you no warner?

(50) They say: Yea, verily, a warner came unto us; but we denied and said: Allah hath naught revealed; ye are in naught but a great error.