(See the question-answer section below.
(See the question-answer section below.) In marrying a virgin woman, whether Muslim or from Ahlul Kitab , it is necessary to get the consent of her father or paternal grandfather, if she is not independent. However, it is precautionarily obligatory to seek their consent [i.e., of the father or the paternal grandfather], even if she is independent. Consent of the woman’s brother, mother, sister or other relations is not required.
The consent of the father or the paternal grandfather to marry a virgin woman, who is both adult and sensible, is not required [in the following cases:] a. if they stop her from marrying someone who is her equal in the eyes of both shar’ia and common practice; b. if they completely withdraw from the involvement in her marriage; c. when it is not possible to get their consent because of their absence. In these cases, she is permitted to marry, if she is in need of marriage.
The consent of the father or the paternal grandfather is not required in the marriage of a non-virgin woman (that is, a girl who had previously married and had sexual intercourse). But the case of the woman who had lost her virginity because of fornication or another cause is like that of a virgin. In countries where the majority of people consists of atheists and Ahlul Kitab, i.e.
non-Muslims, it is necessary for a Muslim to ask the woman whom he wants to marry about her religion so that he may ensure that she is not an atheist and thus the marriage be valid. Her answer [about her faith and religion] is to be accepted. A Muslim man who is married to a Muslim woman is not allowed, in his concurrent second marriage, to marry an Ahlul Kitab woman, i.e. a Jew or a Christian, without asking the consent of his Muslim wife.
Based on obligatory precaution, the man should refrain from marrying her, even it is temporary and his Muslim wife consents to it. Whether or not the Muslim wife lives with him is irrelevant. (See the question-answer section below.) It is not permissible to engage in sexual relations with an Ahlul Kitab woman without a marriage contract, even if the government of her country is in a state of war with Muslims.
(See the question-answer section below.) Based on obligatory precaution, one should refrain from marrying a woman whose notorious for adultery, unless she has repented. Similarly, based on obligatory precaution, the adulterer should not marry the woman with whom he committed adultery, unless she has repented.