The word(s) "rust" appears 85 time(s) in 71 verse(s) in Quran in Muhammad Pickthal translation.

(31) And Allah's is the Invisible of the heavens and the earth, and unto Him the whole matter will be returned. So worship Him and put thy trust in Him. Lo! thy Lord is not unaware of what ye (mortals) do.

(32) They said: O our father! Why wilt thou not trust us with Joseph, when lo! we are good friends to him?

(33) And the king said: Bring him unto me that I may attach him to my person. And when he had talked with him he said: Lo! thou art to-day in our presence established and trusted.

(34) He said: Can I entrust him to you save as I entrusted his brother to you aforetime? Allah is better at guarding, and He is the Most Merciful of those who show mercy.

(35) And he said: O my sons! Go not in by one gate; go in by different gates. I can naught avail you as against Allah. Lo! the decision rests with Allah only. In Him do I put my trust, and in Him let all the trusting put their trust.

(36) Thus We send thee (O Muhammad) unto a nation, before whom other nations have passed away, that thou mayst recite unto them that which We have inspired in thee, while they are disbelievers in the Beneficent. Say: He is my Lord; there is no Allah save Him. In Him do I put my trust and unto Him is my recourse.

(37) Hath not the history of those before you reached you: the folk of Noah, and (the tribes of) A'ad and Thamud, and those after them? None save Allah knoweth them. Their messengers came unto them with clear proofs, but they thrust their hands into their mouths, and said: Lo! we disbelieve in that wherewith ye have been sent, and lo! we are in grave doubt concerning that to which ye call us.

(38) Their messengers said unto them: We are but mortals like you, but Allah giveth grace unto whom He will of His slaves. It is not ours to bring you a warrant unless by the permission of Allah. In Allah let believers put their trust!

(39) How should we not put our trust in Allah when He hath shown us our ways? We surely will endure the hurt ye do us. In Allah let the trusting put their trust.

(40) Such as are steadfast and put their trust in Allah.