What is the ruling on the guardian requesting a divorce for his female ward from her husband due to his negligence in providing for her and her children since their marriage, his abandonment of her in her family's home where they have been supporting her and her children for five years, and the absence of a legitimate dwelling?

The fundamental principle is the husband's obligation to provide for his wife and children, and this includes housing. If the husband is unable to provide for them, the wife has the right to bring her case before the Sharia court to request a divorce. Separation is not permissible except at her request, as it is her right. If the wife is not legally competent to handle her own affairs, her guardian acts on her behalf.