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

(591) by the day as it shows up (the sun's) brightness.

(592) by the night as it conceals it (the sun).

(593) by the heaven and Him Who built it.

(594) by the earth and Him Who spread it.

(595) by Nafs (Adam or a person or a soul), and Him Who perfected him in proportion;

(596) Indeed he succeeds who purifies his ownself (i.e. obeys and performs all that Allah ordered, by following the true Faith of Islamic Monotheism and by doing righteous good deeds).

(597) And indeed he fails who corrupts his ownself (i.e. disobeys what Allah has ordered by rejecting the true Faith of Islamic Monotheism or by following polytheism or by doing every kind of evil wicked deeds).

(598) Thamud (people) denied (their Prophet) through their transgression (by rejecting the true Faith of Islamic Monotheism, and by following polytheism, and by committing every kind of sin).

(599) by the night as it envelops.

(600) by the day as it appears in brightness.