The word(s) "permission" appears 35 time(s) in 27 verse(s) in Quran in Mohsin Khan translation.

(11) Their Messengers said to them: "We are no more than human beings like you, but Allah bestows His Grace to whom He wills of His slaves. It is not ours to bring you an authority (proof) except by the permission of Allah. And in Allah (Alone) let the believers put their trust.

(12) And those who believed (in the Oneness of Allah and His Messengers and whatever they brought) and did righteous deeds, will be made to enter Gardens under which rivers flow, - to dwell therein for ever (i.e. in Paradise), with the permission of their Lord. Their greeting therein will be: Salam (peace!).

(13) None shall have the power of intercession, but such a one as has received permission (or promise) from the Most Gracious (Allah).

(14) [Fir'aun (Pharaoh)] said: "Believe you in him [Musa (Moses)] before I give you permission? Verily he is your chief who has taught you magic. So I will surely cut off your hands and feet on opposite sides, and I will surely crucify you on the trunks of date-palms, and you shall surely know which of us [I (Fir'aun - Pharaoh) or the Lord of Musa (Moses) (Allah)] can give the severe and more lasting torment."

(15) On that day no intercession shall avail, except the one for whom the Most Gracious (Allah) has given permission and whose word is acceptable to Him.

(16) permission to fight (against disbelievers) is given to those (believers) who are fought against, because they have been wronged; and surely, Allah is Able to give them (believers) victory -

(17) O you who believe! Enter not houses other than your own, until you have asked permission and greeted those in them; that is better for you, in order that you may remember.

(18) And if you find no one therein, still, enter not until permission has been given. And if you are asked to go back, go back, for it is purer for you. And Allah is All-Knower of what you do.

(19) There is no sin on you that you enter (without taking permission) houses uninhabited (i.e. not possessed by anybody), (when) you have any interest in them. And Allah has knowledge of what you reveal and what you conceal.

(20) O you who believe! Let your slaves and slave-girls, and those among you who have not come to the age of puberty ask your permission (before they come to your presence) on three occasions: before Fajr (morning) Salat (prayer), and while you put off your clothes for the noonday (rest), and after the 'Isha' (late-night) Salat (prayer). (These) three times are of privacy for you; other than these times there is no sin on you or on them to move about, attending to each other. Thus Allah makes clear the Ayat (the Verses of this Qur'an, showing proofs for the legal aspects of permission for visits) to you. And Allah is All-Knowing, All-Wise.