Allah said,

﴿لاَ تُخْرِجُوهُنَّ مِن بُيُوتِهِنَّ وَلاَ يَخْرُجْنَ﴾

(And turn them not out of their homes nor shall they leave,) meaning, during the duration of the `Iddah, she has the right to housing from her husband, as long as the `Iddah period continues. Therefore, the husband does not have the right to force her out of her house, nor is she allowed to leave his house, because she is still tied to the marriage contract. Allah said,

﴿إِلاَّ أَن يَأْتِينَ بِفَاحِشَةٍ مُّبَيِّنَةٍ﴾

(except in case they are guilty of Fahishah Mubayyinah.) meaning that the divorced wife is not to abandon her husband's house unless she commits Fahishah Mubayyinah, in which case, she vacates her husband's house. For example, Fahishah Mubayyinah implies adultery, according to `Abdullah bin Mas`ud, Ibn `Abbas, Sa`id bin Al-Musayyib, Ash-Sha`bi, Al-Hasan, Ibn Sirin, Mujahid, `Ikrimah, Sa`id bin Jubayr, Abu Qilabah, Abu Salih, Ad-Dahhak, Zayd bin Aslam, `Ata' Al-Khurasani, As-Suddi, Sa`id bin Hilal and others. Fahishah Mubayyinah implies disobeying her husband openly or when she abuses her husband's family in words and actions, according to Ubay bin Ka`b, Ibn `Abbas, `Ikrimah and others. Allah's statement,

﴿وَتِلْكَ حُدُودُ اللَّهِ﴾

(And those are the set limits of Allah.) means, these are from His legislation and prohibitions,

﴿وَمَن يَتَعَدَّ حُدُودَ اللَّهِ﴾

(And whosoever transgresses the set limits of Allah,) meaning, whoever violates these limits, transgresses them and implements anything else besides them,

﴿فَقَدْ ظَلَمَ نَفْسَهُ﴾

(then indeed he has wronged himself.) by doing so.