Q: I was breastfed with one of the sons of L.L.H for a duration of at least fifteen days. I understand that all of this man's sons are my foster brothers. Please advise concerning the following: First, the mentioned man whose wife breastfed me had another wife whom he had divorced. Is she considered my aunt and a Mahram (unmarriageable relative) for me? Can I shake hands with her and sit in Khulwah (being alone with a member of the opposite sex) with her?Second, there are many children who were breastfed by those two wives. Are their foster sons and daughters considered my siblings?
If you were breastfed by L.L.H's wife in the mentioned way in the toddler years, you are considered his son, and his sons and daughters are considered your foster siblings, (Part No. 21; Page No. 105
If you were breastfed by L.L.H's wife in the mentioned way in the toddler years, you are considered his son, and his sons and daughters are considered your foster siblings, (Part No. 21; Page No. 105) according to Allah's saying,
Forbidden to you (for marriage) are: your mothers, your daughters
until His saying,
...your foster milk suckling sisters
Allah also says,
The mothers shall give suck to their children for two whole years
It was authentically reported that the Prophet (peace be upon him) said,
Breastfeeding makes unlawful what birth makes unlawful.
It was also authentically reported from
`Aishah (may Allah be pleased with her) that she said, "It was among the revelation of the Qur'an that ten known times of breastfeeding make the marriage prohibited, but this was later abrogated and reduced to five. The Messenger of Allah (peace be upon him) died and the ruling remained effective." One time of breastfeeding means that the baby sucks milk from the breast. If it stops to take its breath or move to the other breast, and then sucks milk again, this is considered a second time of breastfeeding.The second wife of L.L.H is also a Mahram to you, as she is your foster father's wife, and Allah says,
And marry not women whom your fathers married, except what has already passed
Those who were breastfed by that woman or by other women who married L.L.H are all considered your foster siblings. (Part No. 21; Page No. 106) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.