The word(s) "believers" appears 593 time(s) in 512 verse(s) in Quran in Mohsin Khan translation.

(351) And indeed Iblis (Satan) did prove true his thought about them: and they followed him, all except a group of true believers (in the Oneness of Allah).

(352) And those who disbelieve say: "We believe not in this Qur'an nor in that which was before it." But if you could see when the Zalimun (polytheists and wrong-doers) will be made to stand before their Lord, how they will cast the (blaming) word one to another! Those who were deemed weak will say to those who were arrogant: "Had it not been for you, we should certainly have been believers!"

(353) And those who were arrogant will say to those who were deemed weak: "Did we keep you back from guidance after it had come to you? Nay, but you were Mujrimun (polytheists, sinners, disbelievers, criminals)."

(354) They (the angels) will say: "Glorified be You! You are our Wali (Lord) instead of them. Nay, but they used to worship the jinn; most of them were believers in them."

(355) Not alike are the blind (disbelievers in Islamic Monotheism) and the seeing (believers in Islamic Monotheism).

(356) Nor are (alike) the living (i.e. the believers) and the dead (i.e. the disbelievers). Verily, Allah makes whom He wills to hear, but you cannot make hear those who are in graves.

(357) He it is Who has made you successors generations after generations in the earth, so whosoever disbelieves (in Islamic Monotheism) on him will be his disbelief. And the disbelief of the disbelievers adds nothing but hatred of their Lord. And the disbelief of the disbelievers adds nothing but loss.

(358) It was said (to him when the disbelievers killed him): "Enter Paradise." He said: "Would that my people knew

(359) (It will be said): "And O you Mujrimun (criminals, polytheists, sinners, disbelievers in the Islamic Monotheism, wicked evil ones)! Get you apart this Day (from the believers).

(360) That he or it (Muhammad صلى الله عليه وسلم or the Qur'an) may give warning to him who is living (a healthy minded - the believer), and that Word (charge) may be justified against the disbelievers (dead, as they reject the warnings).