The word(s) "mission" appears 63 time(s) in 55 verse(s) in Quran in Muhammad Habib Shakir translation.

(11) And We did not send any apostle but that he should be obeyed by Allah's permission; and had they, when they were unjust to themselves, come to you and asked forgiveness of Allah and the Apostle had (also) asked forgiveness for them, they would have found Allah Oft-returning (to mercy), Merciful.

(12) But no! by your Lord! they do not believe (in reality) until they make you a judge of that which has become a matter of disagreement among them, and then do not find any straitness in their hearts as to what you have decided and submit with entire submission.

(13) O followers of the Book! indeed Our Apostle has come to you explaining to you after a cessation of the (mission of the) apostles, lest you say: There came not to us a giver of good news or a warner, so indeed there has come to you a giver of good news and a warner; and Allah has power over all things.

(14) When Allah will say: O Isa son of Marium! Remember My favor on you and on your mother, when I strengthened you I with the holy Spirit, you spoke to the people in the cradle and I when of old age, and when I taught you the Book and the wisdom and the Taurat and the Injeel; and when you determined out of clay a thing like the form of a bird by My permission, then you breathed into it and it became a bird by My permission, and you healed the blind and the leprous by My permission; and when you brought forth the dead by My permission; and when I withheld the children of Israel from you when you came to them with clear arguments, but those who disbelieved among them said: This is nothing but clear enchantment.

(15) And as for the good land, its vegetation springs forth (abundantly) by the permission of its Lord, and (as for) that which is inferior (its herbage) comes forth but scantily; thus do We repeat the communications for a people who give thanks.

(16) Firon said: Do you believe in Him before I have given you permission? Surely this is a plot which you have secretly devised in this city, that you may turn out of it its people, but you shall know:

(17) And you do not take revenge on us except because we have believed in the communications of our Lord when they came to us! Our Lord: Pour out upon us patience and cause us to die in submission.

(18) For the present Allah has made light your burden, and He knows that there is weakness in you; so if there are a hundred patient ones of you they shall overcome two hundred, and if there are a thousand they shall overcome two thousand by Allah's permission, and Allah is with the patient.

(19) Therefore if Allah brings you back to a party of them and then they ask your permission to go forth, say: By no means shall you ever go forth with me and by no means shall you fight an enemy with me; surely you chose to sit the first time, therefore sit (now) with those who remain behind.

(20) And whenever a chapter is revealed, saying: Believe in Allah and strive hard along with His Apostle, those having ampleness of means ask permission of you and say: Leave us (behind), that we may be with those who sit.