The word(s) "deniers" appears 21 time(s) in 21 verse(s) in Quran in Saheeh International translation.

(1) Say, "Travel through the land; then observe how was the end of the deniers."

(2) And We certainly sent into every nation a messenger, [saying], "Worship Allah and avoid Taghut." And among them were those whom Allah guided, and among them were those upon whom error was [deservedly] decreed. So proceed through the earth and observe how was the end of the deniers.

(3) So we took retribution from them; then see how was the end of the deniers.

(4) And when the people are gathered [that Day], they [who were invoked] will be enemies to them, and they will be deniers of their worship.

(5) Then woe, that Day, to the deniers,

(6) Then indeed you, O those astray [who are] deniers,

(7) But if he was of the deniers [who were] astray,

(8) Then do not obey the deniers.

(9) And indeed, We know that among you are deniers.

(10) And leave Me with [the matter of] the deniers, those of ease [in life], and allow them respite a little.