Is it permissible for Maryam to uncover her face in front of Abu Muhammad and Sarah, and Muhammad and Sarah's maternal uncle, if Nadia breastfed Muhammad and Sarah more than five times, while Mona breastfed Ola and Maryam but does not know the number of times she breastfed Maryam?

"What is prohibited by fosterage is prohibited by lineage. Thus, the husband of the foster mother becomes a father to the foster child, and her brother becomes his maternal uncle. They are treated like other mahram relatives regarding the permissibility of looking and privacy. However, mahramiyyah (the state of being an unmarriageable kin) is not established by doubt concerning the number of breastfeeds, and the default is its absence. Therefore, mahramiyyah is not established between Maryam and Mona, and it is not permissible for Maryam to uncover in front of those mentioned due to the lack of established mahramiyyah. This is based on the view that five breastfeeds are required, which is the most preferred and cautious opinion."