and we have already sent messengers before you and assigned to them wives and descendants. and it was not for a messenger to come with a sign except by permission of allah. for every term is a decree.
ولقد أرسلنا رسلا من قبلك وجعلنا لهم أزواجا وذرية وما كان لرسول أن يأتي بآية إلا بإذن الله لكل أجل كتاب