 divorce may be only twice then either an honourable retention or a kindly release. it is not lawful for you to take back anything from what you have given them unless the couple fear that they may not maintain allahs bounds so if you fear they would not maintain allahs bounds there is no sin upon them in what she may give to secure her own release. these are allahs bounds so do not transgress them and whoever transgresses the bounds of allah—it is they who are the wrongdoers.
الطلاق مرتان فإمساك بمعروف أو تسريح بإحسان ولا يحل لكم أن تأخذوا مما آتيتموهن شيئا إلا أن يخافا ألا يقيما حدود الله فإن خفتم ألا يقيما حدود الله فلا جناح عليهما فيما افتدت به تلك حدود الله فلا تعتدوها ومن يتعد حدود الله فأولئك هم الظالمون