“ Surely none despairs of Allah's mercy except the disbelieving people.
88 So when they came to him, they said: O chief, distress has afflicted us and our family, and we have brought scanty money, so give us full measure and be charitable to us. Surely Allah rewards the charitable.
89 He said: Do you know how you treated Joseph and his brother, when you were ignorant?
90 They said: Art thou indeed Joseph? He said: I am Joseph and this is my brother; Allah has indeed been gracious to us. Surely he who keeps his duty and is patient -- Allah never wastes the reward of the doers of good. ”

“ Surely my Lord knows their device.
51 (The king) said: What was your affair when you sought to seduce Joseph? They said: Holy Allah! We knew of no evil on his part. The chief's wife said: Now has the truth become manifest. I sought to seduce him and he is surely of the truthful.
52 This is that he might know that I have not been unfaithful to him in secret, and that Allah guides not the device of the unfaithful.
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53 And I call not myself sinless surely (man's) self is wont to command evil, except those on whom my Lord has mercy. Surely my Lord is Forgiving, Merciful. ”

“ Place me (in authority) over the treasures of the land; surely I am a good keeper, knowing well.
56 And thus did We give to Joseph power in the land -- he had mastery in it wherever he liked. We bestow Our mercy on whom We please, and We waste not the reward of the doers of good.
57 And certainly the reward of the Hereafter is better for those who believe and guard against evil. ”