The word(s) "hearts" appears 136 time(s) in 127 verse(s) in Quran in Muhammad Habib Shakir translation.

(71) And that those who have been given the knowledge may know that it is the truth from your Lord, so they may believe in it and their hearts may be lowly before it; and most surely Allah is the Guide of those who believe into a right path.

(72) And those who give what they give (in alms) while their hearts are full of fear that to their Lord they must return,

(73) Nay, their hearts are in overwhelming ignorance with respect to it and they have besides this other deeds which they do.

(74) And He it is Who made for you the ears and the eyes and the hearts; little is it that you give thanks.

(75) Men whom neither merchandise nor selling diverts from the remembrance of Allah and the keeping up of prayer and the giving of poor-rate; they fear a day in which the hearts and eyes shall turn about;

(76) Is there in their hearts a disease, or are they in doubt, or do they fear that Allah and His Apostle will act wrongfully towards them? Nay! they themselves are the unjust.

(77) Thus have We caused it to enter into the hearts of the guilty.

(78) Thus does Allah set a seal on the hearts of those who do not know.

(79) Then He made him complete and breathed into him of His spirit, and made for you the ears and the eyes and the hearts; little is it that you give thanks.

(80) Allah has not made for any man two hearts within him; nor has He made your wives whose backs you liken to the backs of your mothers as your mothers, nor has He made those whom you assert to be your sons your real sons; these are the words of your mouths; and Allah speaks the truth and He guides to the way.