The word(s) "believed" appears 58 time(s) in 54 verse(s) in Quran in Abdullah Yusuf Ali translation.

(21) "That which is left you by Allah is best for you, if ye (but) believed! but I am not set over you to keep watch!"

(22) When Our decree issued, We saved Shu'aib and those who believed with him, by (special) mercy from Ourselves: But the (mighty) blast did seize the wrong-doers, and they lay prostrate in their homes by the morning,-

(23) Speak to my servants who have believed, that they may establish regular prayers, and spend (in charity) out of the sustenance we have given them, secretly and openly, before the coming of a Day in which there will be neither mutual bargaining nor befriending.

(24) Behold! in this is a sign for those who believed.

(25) We relate to thee their story in truth: they were youths who believed in their Lord, and We advanced them in guidance:

(26) "For us, we have believed in our Lord: may He forgive us our faults, and the magic to which thou didst compel us: for Allah is Best and Most Abiding."

(27) (As to those) before them, not one of the populations which We destroyed believed: will these believe?

(28) And the chiefs of his people, who disbelieved and denied the Meeting in the Hereafter, and on whom We had bestowed the good things of this life, said: "He is no more than a man like yourselves: he eats of that of which ye eat, and drinks of what ye drink.

(29) And had he recited it to them, they would not have believed in it.

(30) And We saved those who believed and practised righteousness.