The word(s) "believer" appears 309 time(s) in 259 verse(s) in Quran in Abdullah Yusuf Ali translation.

(181) And when they are told, "Spend ye of (the bounties) with which Allah has provided you," the Unbelievers say to those who believe: "Shall we then feed those whom, if Allah had so willed, He would have fed, (Himself)?- Ye are in nothing but manifest error."

(182) But the Unbelievers (are steeped) in self-glory and Separatism.

(183) So they wonder that a Warner has come to them from among themselves! and the Unbelievers say, "This is a sorcerer telling lies!

(184) Not without purpose did We create heaven and earth and all between! that were the thought of Unbelievers! but woe to the Unbelievers because of the Fire (of Hell)!

(185) The Unbelievers will be led to Hell in crowd: until, when they arrive, there, its gates will be opened. And its keepers will say, "Did not messengers come to you from among yourselves, rehearsing to you the Signs of your Lord, and warning you of the Meeting of This Day of yours?" The answer will be: "True: but the Decree of Punishment has been proved true against the Unbelievers!"

(186) None can dispute about the Signs of Allah but the Unbelievers. Let not, then, their strutting about through the land deceive thee!

(187) Thus was the Decree of thy Lord proved true against the Unbelievers; that truly they are Companions of the Fire!

(188) The Unbelievers will be addressed: "Greater was the aversion of Allah to you than (is) your aversion to yourselves, seeing that ye were called to the Faith and ye used to refuse."

(189) Call ye, then, upon Allah with sincere devotion to Him, even though the Unbelievers may detest it.

(190) Now, when he came to them in Truth, from Us, they said, "Slay the sons of those who believe with him, and keep alive their females," but the plots of Unbelievers (end) in nothing but errors (and delusions)!...