What is the ruling of Islamic law regarding a wife's continued daily communication with her daughter's father, who is a stranger to her, and her threat to seek a divorce and return to him if the husband continues to object to this communication, knowing that the wife was raised in a Christian environment and does not adhere to the teachings of the Islamic religion?

Marriage has legitimate Islamic objectives, among them seeking offspring, protecting one's chastity, and forming a Muslim family. The choice of a wife should be based on achieving these objectives. This woman does not fulfill these objectives, because she was an adulteress and has not repented. Allah Almighty says: "The fornicator does not marry except a [female] fornicator or polytheist, and none marries her except a fornicator or a polytheist, and that has been made unlawful for the believers." She is also an unrighteous woman persisting in immorality, and she gives no weight to religion. In addition, she is infertile, and this misses a great objective of marriage, which is seeking offspring. The Prophet, peace and blessings be upon him, said: "Marry the affectionate and fertile women, for I shall outnumber the other nations with you." For these reasons, you must leave her and seek a righteous wife who fulfills the objectives of marriage.