The word(s) "by" appears 450 time(s) in 398 verse(s) in Quran in Muhammad Habib Shakir translation.

(31) Allah, (there is) no god but He, the Everliving, the Self-subsisting by Whom all things subsist

(32) He said: My Lord! appoint a sign for me. Said He: Your sign is that you should not speak to men for three days except by signs; and remember your Lord much and glorify Him in the evening and the morning.

(33) And do not believe but in him who follows your religion. Say: Surely the (true) guidance is the guidance of Allah-- that one may be given (by Him) the like of what you were given; or they would contend with you by an argument before your Lord. Say: Surely grace is in the hand of Allah, He gives it to whom He pleases; and Allah is Ample-giving, Knowing.

(34) by no means shall you attain to righteousness until you spend (benevolently) out of what you love; and whatever thing you spend, Allah surely knows it.

(35) And hold fast by the covenant of Allah all together and be not disunited, and remember the favor of Allah on you when you were enemies, then He united your hearts so by His favor you became brethren; and you were on the brink of a pit of fire, then He saved you from it, thus does Allah make clear to you His communications that you may follow the right way.

(36) They shall by no means harm you but with a slight evil; and if they fight with you they shall turn (their) backs to you, then shall they not be helped.

(37) And Allah did not make it but as good news for you, and that your hearts might be at ease thereby, and victory is only from Allah, the Mighty, the Wise.

(38) If a wound has afflicted you (at Ohud), a wound like it has also afflicted the (unbelieving) people; and We bring these days to men by turns, and that Allah may know those who believe and take witnesses from among you; and Allah does not love the unjust.

(39) And Muhammad is no more than an apostle; the apostles have already passed away before him; if then he dies or is killed will you turn back upon your heels? And whoever turns back upon his heels, he will by no means do harm to Allah in the least and Allah will reward the grateful.

(40) And certainly Allah made good to you His promise when you slew them by His permission, until when you became weak-hearted and disputed about the affair and disobeyed after He had shown you that which you loved; of you were some who desired this world and of you were some who desired the hereafter; then He turned you away from them that He might try you; and He has certainly pardoned you, and Allah is Gracious to the believers.