How can a Muslim man marry a Muslim woman despite her disbelieving father's refusal, and what is the solution if his family does not approve?

If the girl's father commits an act that necessitates his apostasy, he loses guardianship over her. Guardianship then transfers to the next closest male guardians, in order of proximity: the father (if he were not an apostate), then the paternal grandfather, then the paternal great-grandfather, then the full brother or half-brother through the father, then the nephew (son of the brother), then the full paternal uncle or half-uncle through the father, then his son, and then the rest of the asabah (agnatic relatives). It is a condition that the guardian be fit for guardianship; otherwise, guardianship transfers to the next in line.

If none of these guardians exist, or if they are not fit, guardianship transfers to the Muslim ruler. If there is no Muslim ruler, then the woman may appoint a Muslim man to marry her off, provided that this is done in the presence of witnesses.

The questioner must obey his father in not consenting to the marriage as much as possible, and he must cut off his relationship with the foreign woman; for it is not permissible to be alone with her or to speak with her except out of necessity. He must also beware of neglecting prayer, for the Prophet, peace and blessings be upon him, said: "The covenant between us and them is prayer; whoever abandons it has disbelieved."