And the man from Egypt who bought him said to his wife: "Make his stay [with us] honourable; he may well be of use to us, or we may adopt him as a son. And thus We gave unto Joseph a firm place on earth; and [We did this] so that We might impart unto him some understanding of the inner meaning of happenings. For, God always prevails in whatever be His purpose: but most people know it not. 21 When he reached the prime of life We gave him wisdom and knowledge. Thus We reward those who are good. 22 And she in whose house he was sought to make himself yield (to her), and she made fast the doors and said: Come forward. He said: I seek Allah's refuge, surely my Lord made good my abode: Surely the unjust do not prosper. 23 For she desired him; and he would have taken her, but that he saw the proof of his Lord. So was it, that We might turn away from him evil and abomination; he was one of Our devoted servants. 24 And they both rushed to the door; and she [grasped and] rent his tunic from behind - and [lo!] they met her lord at the door! Said she: "What ought to be the punishment of one who had evil designs on [the virtue of] thy wife - [what] but imprisonment or a [yet more] grievous chastisement?" 25 He said: "It was she that sought to seduce me - from my (true) self." And one of her household saw (this) and bore witness, (thus):- "If it be that his shirt is rent from the front, then is her tale true, and he is a liar! 26 But if his shirt is torn from the back, then she has lied, and he is of the truthful." 27 And when [her husband] saw that his tunic was torn from behind, he said: "Behold, this is [an instance] of your guile, O womankind! Verily, awesome is your guile! 28 [But,] Joseph, let this pass! And thou, [O wife,] ask forgiveness for thy sin - for, verily, thou hast been greatly at fault!" 29