The word(s) "ilaha" appears 52 time(s) in 51 verse(s) in Quran in Mohsin Khan translation.

(31) So Exalted be Allah, the True King: La ilaha illa Huwa (none has the right to be worshipped but He), the Lord of the Supreme Throne!

(32) On the Day they will see the angels - no glad tidings will there be for the Mujrimun (criminals, disbelievers, polytheists, sinners) that day. And they (angels) will say: "All kinds of glad tidings are forbidden to you," [none will be allowed to enter Paradise except the one who said: La ilaha illallah, "(none has the right to be worshipped but Allah) and acted practically on its legal orders and obligations. See the footnote of V.2:193)].

(33) Allah, La ilaha illa Huwa (none has the right to be worshipped but He), the Lord of the Supreme Throne!

(34) And He is Allah: La ilaha illa Huwa (none has the right to be worshipped but He), all praises and thanks be to Him (both) in the first (i.e. in this world) and in the last (i.e. in the Hereafter). And for Him is the Decision, and to Him shall you (all) be returned.

(35) And invoke not any other ilah (god) along with Allah: La ilaha illa Huwa (none has the right to be worshipped but He). Everything will perish save His Face. His is the Decision, and to Him you (all) shall be returned.

(36) And whosoever submits his face (himself) to Allah, while he is a Muhsin (good-doer i.e. performs good deeds totally for Allah's sake without any show off or to gain praise or fame and does them in accordance with the Sunnah of Allah's Messenger Muhammad صلى الله عليه وسلم), then he has grasped the most trustworthy handhold [La ilaha illallah (none has the right to be worshipped but Allah)]. And to Allah return all matters for decision.

(37) O mankind! Remember the Grace of Allah upon you! Is there any creator other than Allah who provides for you from the sky (rain) and the earth? La ilaha illa Huwa (none has the right to be worshipped but He). How then are you turning away (from Him)?

(38) Truly, when it was said to them: La ilaha illallah "(none has the right to be worshipped but Allah)," they puffed themselves up with pride (i.e. denied it).

(39) He created you (all) from a single person (Adam); then made from him his wife [Hawwa' (Eve)]. And He has sent down for you of cattle eight pairs (of the sheep, two, male and female; of the goats, two, male and female; of the oxen, two, male and female; and of the camels, two, male and female). He creates you in the wombs of your mothers: creation after creation in three veils of darkness. Such is Allah your Lord. His is the kingdom. La ilaha illa Huwa (none has the right to be worshipped but He). How then are you turned away?

(40) Those who listen to the Word [good advice La ilaha illallah - (none has the right to be worshipped but Allah) and Islamic Monotheism] and follow the best thereof (i.e. worship Allah Alone, repent to Him and avoid Taghut) those are (the ones) whom Allah has guided and those are men of understanding.