Is it permissible for a Jewish wife to abort her fetus, while the husband is aware of the prohibition of abortion, in order to protect the fetus from fitna (temptation/strife) and being raised in a religion other than Islam?

You can only say, "Allah suffices us, and He is the best Disposer of affairs," and "Indeed, to Allah we belong and to Him we shall return," for this is a type of tribulation. Islamic law encourages a Muslim to inquire about what he does not know before acting, especially concerning matters of sexual relations, where caution is originally paramount, in accordance with the Almighty's saying: "So ask the people of the message if you do not know." If the woman feigns Islam for the sake of marriage, she is neither a Muslim nor a Scripturalist, and you must separate from her immediately. However, the fetus is attributed to you because you believed her marriage was permissible. Aborting the fetus after the soul has been breathed into it is forbidden by consensus unless there is a necessity. It is important to emphasize the significance of marrying a righteous Muslim woman, and that marrying a chaste Scripturalist woman, though permissible, is not without risks.