The word(s) "believer" appears 350 time(s) in 314 verse(s) in Quran in Muhammad Pickthal translation.

(181) Allah admonisheth you that ye repeat not the like thereof ever, if ye are (in truth) believers.

(182) And tell the believing women to lower their gaze and be modest, and to display of their adornment only that which is apparent, and to draw their veils over their bosoms, and not to reveal their adornment save to their own husbands or fathers or husbands' fathers, or their sons or their husbands' sons, or their brothers or their brothers' sons or sisters' sons, or their women, or their slaves, or male attendants who lack vigour, or children who know naught of women's nakedness. And let them not stamp their feet so as to reveal what they hide of their adornment. And turn unto Allah together, O believers, in order that ye may succeed.

(183) And they say: We believe in Allah and the messenger, and we obey; then after that a faction of them turn away. Such are not believers.

(184) The saying of (all true) believers when they appeal unto Allah and His messenger to judge between them is only that they say: We hear and we obey. And such are the successful.

(185) Think not that the disbelievers can escape in the land. Fire will be their home - a hapless journey's end!

(186) They only are the true believers who believe in Allah and His messenger and, when they are with him on some common errand, go not away until they have asked leave of him. Lo! those who ask leave of thee, those are they who believe in Allah and His messenger. So, if they ask thy leave for some affair of theirs, give leave to whom thou wilt of them, and ask for them forgiveness of Allah. Lo! Allah is Forgiving, Merciful.

(187) The Sovereignty on that day will be the True (Sovereignty) belonging to the Beneficent One, and it will be a hard day for disbelievers.

(188) So obey not the disbelievers, but strive against them herewith with a great endeavour.

(189) Yet they worship instead of Allah that which can neither benefit them nor hurt them. The disbeliever was ever a partisan against his Lord.

(190) Say (O Muhammad, unto the disbelievers): My Lord would not concern Himself with you but for your prayer. But now ye have denied (the Truth), therefor there will be judgment.