The word(s) "prayer" appears 130 time(s) in 90 verse(s) in Quran in Mohsin Khan translation.

(81) Verily, your Lord knows that you do stand (to pray at night) a little less than two thirds of the night, or half the night, or a third of the night, and also a party of those with you. And Allah measures the night and the day. He knows that you are unable to pray the whole night, so He has turned to you (in mercy). So, recite you of the Qur'an as much as may be easy for you. He knows that there will be some among you sick, others travelling through the land, seeking of Allah's Bounty, yet others fighting in Allah's Cause. So recite as much of the Qur'an as may be easy (for you), and perform As-Salat (Iqamat-as-Salat ) and give Zakat, and lend to Allah a goodly loan. And whatever good you send before you for yourselves (i.e. Nawafil non-obligatory acts of worship: prayers, charity, fasting, Hajj and 'Umrah), you will certainly find it with Allah, better and greater in reward. And seek Forgiveness of Allah. Verily, Allah is Oft-Forgiving, Most-Merciful .

(82) They will say: "We were not of those who used to offer the Salat (prayers),

(83) And remember the Name of your Lord every morning and afternoon [i.e. offering of the Morning (Fajr), Zuhr, and 'Asr prayers].

(84) And during night, prostrate yourself to Him (i.e. the offering of Maghrib and 'Isha' prayers), and glorify Him a long night through (i.e. Tahajjud prayer).

(85) And when it is said to them: "Bow down yourself (in prayer)!" They bow not down (offer not their prayers).

(86) The Day when all the secrets (deeds, prayers, fasting, etc.) will be examined (as to their truth).

(87) And remembers (glorifies) the Name of his Lord (worships none but Allah), and prays (five compulsory prayers and Nawafil - additional prayers).

(88) So woe unto those performers of Salat (prayers) (hypocrites),

(89) Those who delay their Salat (prayer from their stated fixed times).

(90) Therefore turn in prayer to your Lord and sacrifice (to Him only).