The word(s) "invoke" appears 72 time(s) in 64 verse(s) in Quran in Mohsin Khan translation.

(51) And your Lord said: "invoke Me, [i.e. believe in My Oneness (Islamic Monotheism) and ask Me for anything] I will respond to your (invocation). Verily! Those who scorn My worship [i.e. do not invoke Me, and do not believe in My Oneness, (Islamic Monotheism)] they will surely enter Hell in humiliation!"

(52) He is the Ever Living, La ilaha illa Huwa (none has the right to be worshipped but He); so invoke Him making your worship pure for Him Alone (by worshipping Him Alone, and none else, and by doing righteous deeds sincerely for Allah's sake only, and not to show off, and not setting up rivals with Him in worship). All the praises and thanks be to Allah, the Lord of the 'Alamin (mankind, jinn and all that exists).

(53) "Besides Allah"? They will say: "They have vanished from us: Nay, we did not invoke (worship) anything before." Thus Allah leads astray the disbelievers.

(54) And those whom they used to invoke before (in this world) shall disappear from them, and they will perceive that they have no place of refuge (from Allah's punishment).

(55) And they said [to Musa (Moses)]: "O you sorcerer! invoke your Lord for us according to what He has covenanted with you. Verily, We shall guide ourselves (aright)."

(56) And those whom they invoke instead of Him have no power of intercession - except for those who bear witness to the truth knowingly (i.e. believed in the Oneness of Allah, and obeyed His Orders), and they know (the facts about the Oneness of Allah).

(57) Say (O Muhammad صلى الله عليه وسلم to these pagans): "Think you about all that you invoke besides Allah? Show me. What have they created of the earth? Or have they a share in (the creation of) the heavens? Bring me a Book (revealed before this), or some trace of knowledge (in support of your claims), if you are truthful!"

(58) And who is more astray than one who calls on (invokes) besides Allah, such as will not answer him till the Day of Resurrection, and who are (even) unaware of their calls (invocations) to them?

(59) But he who says to his parents: "Fie upon you both! Do you hold out the promise to me that I shall be raised up (again) when generations before me have passed away (without rising)?" While they (father and mother) invoke Allah for help (and rebuke their son): "Woe to you! Believe! Verily, the Promise of Allah is true." But he says: "This is nothing but the tales of the ancient."

(60) "Verily, We used to invoke Him (Alone and none else) before. Verily, He is Al-Barr (the Most Subtle, Kind, Courteous, and Generous), the Most Merciful."