and if he has divorced her then she is not lawful unto him thereafter until she has married another husband. then if the other husband divorces her it is no sin on both of them that they reunite provided they feel that they can keep the limits ordained by allah. these are the limits of allah which he makes plain for the people who have knowledge.
فإن طلقها فلا تحل له من بعد حتى تنكح زوجا غيره فإن طلقها فلا جناح عليهما أن يتراجعا إن ظنا أن يقيما حدود الله وتلك حدود الله يبينها لقوم يعلمون