The word(s) "caller" appears 6 time(s) in 6 verse(s) in Quran in Saheeh International translation.

(1) Our Lord, indeed we have heard a caller calling to faith, [saying], 'Believe in your Lord,' and we have believed. Our Lord, so forgive us our sins and remove from us our misdeeds and cause us to die with the righteous.

(2) That Day, everyone will follow [the call of] the caller [with] no deviation therefrom, and [all] voices will be stilled before the Most Merciful, so you will not hear except a whisper [of footsteps].

(3) But he who does not respond to the caller of Allah will not cause failure [to Him] upon earth, and he will not have besides Him any protectors. Those are in manifest error."

(4) And listen on the Day when the caller will call out from a place that is near -

(5) So leave them, [O Muhammad]. The Day the caller calls to something forbidding,

(6) Racing ahead toward the caller. The disbelievers will say, "This is a difficult Day."