The word(s) "affair" appears 70 time(s) in 65 verse(s) in Quran in Abdullah Yusuf Ali translation.

(11) But thy people reject this, though it is the truth. Say: "Not mine is the responsibility for arranging your affairs;

(12) "And behold! ye come to us bare and alone as We created you for the first time: ye have left behind you all (the favours) which We bestowed on you: We see not with you your intercessors whom ye thought to be partners in your affairs: so now all relations between you have been cut off, and your (pet) fancies have left you in the lurch!"

(13) That is Allah, your Lord! there is no god but He, the Creator of all things: then worship ye Him: and He hath power to dispose of all affairs.

(14) If it had been Allah's plan, they would not have taken false gods: but We made thee not one to watch over their doings, nor art thou set over them to dispose of their affairs.

(15) As for those who divide their religion and break up into sects, thou hast no part in them in the least: their affair is with Allah: He will in the end tell them the truth of all that they did.

(16) Say: "Who is it that sustains you (in life) from the sky and from the earth? or who is it that has power over hearing and sight? And who is it that brings out the living from the dead and the dead from the living? and who is it that rules and regulates all affairs?" They will soon say, "Allah". Say, "will ye not then show piety (to Him)?"

(17) Say: "O ye men! Now Truth hath reached you from your Lord! those who receive guidance, do so for the good of their own souls; those who stray, do so to their own loss: and I am not (set) over you to arrange your affairs."

(18) Perchance thou mayest (feel the inclination) to give up a part of what is revealed unto thee, and thy heart feeleth straitened lest they say, "Why is not a treasure sent down unto him, or why does not an angel come down with him?" But thou art there only to warn! It is Allah that arrangeth all affairs!

(19) To Allah do belong the unseen (secrets) of the heavens and the earth, and to Him goeth back every affair (for decision): then worship Him, and put thy trust in Him: and thy Lord is not unmindful of aught that ye do.

(20) So they did take him away, and they all agreed to throw him down to the bottom of the well: and We put into his heart (this Message): 'Of a surety thou shalt (one day) tell them the truth of this their affair while they know (thee) not'