The word(s) "by" appears 750 time(s) in 615 verse(s) in Quran in Mohsin Khan translation.

(421) So unto this (religion of Islam alone and this Qur'an) then invite (people) (O Muhammad صلى الله عليه و سلم), and stand firm [on Islamic Monotheism by performing all that is ordained by Allah (good deeds), and by abstaining from all that is forbidden by Allah (sins and evil deeds)], as you are commanded, and follow not their desires but say: "I believe in whatsoever Allah has sent down of the Book [all the holy Books, - this Qur'an and the Books of the old from the Taurat (Torah), or the Injeel (Gospel) or the Pages of Ibrahim (Abraham)] and I am commanded to do justice among you. Allah is our Lord and your Lord. For us our deeds and for you your deeds. There is no dispute between us and you. Allah will assemble us (all), and to Him is the final return."

(422) And those who dispute concerning Allah (His religion of Islamic Monotheism with which Muhammad صلى الله عليه و سلم has been sent), after it has been accepted (by the people), of no use is their dispute before their Lord and on them is wrath, and for them will be a severe torment.

(423) Whosoever desires (by his deeds) the reward of the Hereafter, We give him increase in his reward, and whosoever desires the reward of this world (by his deeds), We give him thereof (what is decreed for him), and he has no portion in the Hereafter.

(424) Or say they: "He has invented a lie against Allah?" If Allah willed, He could have sealed up your heart (so that you forget all that you know of the Qur'an). And Allah wipes out falsehood, and establishes the truth (Islam) by His Word (this Qur'an). Verily, He knows well what (secrets) are in the breasts (of mankind).

(425) And if Allah were to enlarge the provision for His slaves, they would surely rebel in the earth, but He sends down by measure as He wills. Verily! He is, in respect of His slaves, the Well-Aware, the All-Seer (of things that benefit them).

(426) Or He may destroy them (by shipwreck) because of that which their (people) have earned. And He pardons much.

(427) And those who answer the Call of their Lord [i.e. to believe that He is the only One Lord (Allah), and to worship none but Him Alone], and perform As-Salat (Iqamat-as-Salat), and who (conduct) their affairs by mutual consultation, and who spend of what We have bestowed on them.

(428) And verily, whosoever shows patience and forgives, that would truly be from the things recommended by Allah.

(429) And you will see them brought forward to it (Hell) made humble by disgrace, (and) looking with stealthy glance. And those who believe will say: "Verily, the losers are they who lose themselves and their families on the Day of Resurrection. Verily, the Zalimun [i.e. Al-Kafirun (disbelievers in Allah, in His Oneness and in His Messenger صلى الله عليه و سلم, polytheists, wrong-doers)] will be in a lasting torment. (Tafsir At-Tabari).

(430) It is not given to any human being that Allah should speak to him unless (it be) by Revelation, or from behind a veil, or (that) He sends a Messenger to reveal what He wills by His Leave. Verily, He is Most High, Most Wise.