Chapter 33, Verse 38

And remember when thou didst say to him on whom Allah had bestowed favours and on whom thou also hadst bestowed favours: ‘Keep thy wife to thyself, and fear Allah.’ And thou didst conceal in thy heart what Allah was going to bring to light, and thou wast afraid of the people, whereas Allah has better right that thou shouldst fear Him. Then, when Zaid had accomplished his want of her so as to have no further need of her, We joined her in marriage to thee, so that there may be no hindrance for the believers with regard to the wives of their adopted sons, when they have accomplished their want of them. And Allah’s decree must be fulfilled.