The word(s) "wakil" appears 14 time(s) in 14 verse(s) in Quran in Mohsin Khan translation.

(1) But your people (O Muhammad صلى الله عليه وسلم) have denied it (the Qur'an) though it is the truth. Say: "I am not a wakil (guardian) over you."

(2) Such is Allah, your Lord! La ilaha illa Huwa (none has the right to be worshipped but He), the Creator of all things. So worship Him (Alone), and He is the wakil (Trustee, Disposer of affairs, Guardian) over all things.

(3) Had Allah willed, they would not have taken others besides Him in worship. And We have not made you a watcher over them nor are you a wakil (disposer of affairs, guardian, trustee) over them.

(4) Say: "O you mankind! Now truth (i.e. the Qur'an and Prophet Muhammad صلى الله عليه وسلم) has come to you from your Lord. So whosoever receives guidance, he does so for the good of his own self; and whosoever goes astray, he does so to his own loss; and I am not (set) over you as a wakil (disposer of affairs to oblige you for guidance)."

(5) So perchance you (Muhammad صلى الله عليه و سلم) may give up a part of what is revealed unto you, and that your breast feels straitened for it because they say, "Why has not a treasure been sent down unto him, or an angel has come with him?" But you are only a warner. And Allah is a wakil (Disposer of affairs, Trustee, Guardian) over all things.

(6) And We gave Musa (Moses) the Scripture and made it a guidance for the Children of Israel (saying): "Take none other than Me as (your) wakil (Protector, Lord or Disposer of your affairs).

(7) Do you then feel secure that He will not cause a side of the land to swallow you up, or that He will not send against you a violent sand-storm? Then, you shall find no wakil (guardian - one to guard you from the torment).

(8) Have you (O Muhammad صلى الله عليه وسلم) seen him who has taken as his ilah (god) his own vain desire? Would you then be a wakil (a disposer of his affairs or a watcher) over him?

(9) And put your trust in Allah, and Sufficient is Allah as a wakil (Trustee, or Disposer of affairs).

(10) And obey not the disbelievers and the hypocrites, and harm them not (in revenge for their harming you till you are ordered). And put your trust in Allah, and Sufficient is Allah as a wakil (Trustee, or Disposer of affairs). [Tafsir Al-Qurtubi]