The word(s) "affair" appears 54 time(s) in 50 verse(s) in Quran in Mohsin Khan translation.

(41) Allah is the Creator of all things, and He is the Wakil (Trustee, Disposer of affairs, Guardian) over all things.

(42) "And you will remember what I am telling you, and my affair I leave it to Allah. Verily, Allah is the All-Seer of (His) slaves."

(43) Then He completed and finished from their creation (as) seven heavens in two Days and He made in each heaven its affair. And We adorned the nearest (lowest) heaven with lamps (stars) to be an adornment as well as to guard (from the devils by using them as missiles against the devils). Such is the Decree of Him the All-Mighty, the All-Knower.

(44) And as for those who take as Auliya' (guardians, supporters, helpers, lords, gods, protectors) others besides Him [i.e. they take false deities other than Allah as protectors, and they worship them] - Allah is Hafiz (Protector, Watcher) over them (i.e. takes care of their deeds and will recompense them), and you (O Muhammad صلى الله عليه و سلم) are not a Wakil (guardian or a disposer of their affairs) over them (to protect their deeds).

(45) And in whatsoever you differ, the decision thereof is with Allah (He is the ruling Judge). (And say O Muhammad صلى الله عليه و سلم to these polytheists:) Such is Allah, my Lord in Whom I put my trust, and to Him I turn (in all of my affairs and) in repentance.

(46) So whatever you have been given is but (a passing) enjoyment for this worldly life, but that which is with Allah (Paradise) is better and more lasting for those who believe (in the Oneness of Allah - Islamic Monotheism) and put their trust in their Lord (concerning all of their affairs).

(47) And those who answer the Call of their Lord [i.e. to believe that He is the only One Lord (Allah), and to worship none but Him Alone], and perform As-Salat (Iqamat-as-Salat), and who (conduct) their affairs by mutual consultation, and who spend of what We have bestowed on them.

(48) Whosoever is in the heavens and on earth begs of Him (its needs from Him). Every day He is (engaged) in some affair (such as giving honour or disgrace to some, life or death to some, etc.)!

(49) So it tasted the evil result of its affair (disbelief), and the consequence of its affair (disbelief) was loss (destruction in this life and an eternal punishment in the Hereafter).

(50) (He Alone is) the Lord of the east and the west; La ilaha illa Huwa (none has the right to be worshipped but He). So take Him Alone as Wakil (Disposer of your affairs).