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

(41) Lo! he hath no power over those who believe and put trust in their Lord.

(42) And thrust thy hand within thine armpit, it will come forth white without hurt. (That will be) another token.

(43) And trust thou in the Living One Who dieth not, and hymn His praise. He sufficeth as the Knower of His bondmen's sins,

(44) And put thy trust in the Mighty, the Merciful.

(45) A stalwart of the jinn said: I will bring it thee before thou canst rise from thy place. Lo! I verily am strong and trusty for such work.

(46) Therefor (O Muhammad) put thy trust in Allah, for thou (standest) on the plain Truth.

(47) One of the two women said: O my father! Hire him! For the best (man) that thou canst hire in the strong, the trustworthy.

(48) Thrust thy hand into the bosom of thy robe it will come forth white without hurt. And guard thy heart from fear. Then these shall be two proofs from your Lord unto Pharaoh and his chiefs. Lo! they are evil-living folk.

(49) Who persevere, and put their trust in their Lord!

(50) And put thy trust in Allah, for Allah is sufficient as Trustee.