The story of the monk called Bahira is not considered authentic in the Imami school.

The Sunni schools and Imami schools differ on this with regard to egg donation. Originally, both the Sunni schools and Imami school considered that fertilisation of an egg between non-mahrams is zina and therefore haram. The scholars of the Imami school said that to solve the problem, a man can do temporary marriage with the egg donor, even though there is no physical relationship between them. 

The Qur'an says: "Allah prescribes for your children: for a male is equal the portion of two female" (4:11). Since the husband is obliged to spend for the maintenance of the family, his share of inheritance amounts double of that of the woman. The Qur'an also seems to indicate that such a rule is not subject to change in relation to the wife's job by saying: "These are the limits set by Allah" (4:13). A woman can decide if she wants to work, and if she does, she can spend all of her money for herself without sharing it with her husband because of the obligation of the maintenance.