And recall what time thou wast saying unto him on whom Allah had conferred favour and thou hadst conferred favour : keep thy wife to thyself and fear Allah ; so and thou wast concealing in thy mind that which Allah was going to disclose , and thou wast fearing mankind , whereas Allah had a better right that Him thou shouldst fear . Then when Zaid had performed his purpose concerning her , We wedded her to thee , that there should be no blame for believers in respect of wives of their adopted sons , when they have performed their purpose concerning them .