Ruling on marrying a woman who was breastfed with the sister of the brother with whom one was breastfed?

Question:
I want to marry a girl, but there is a problem. I was breastfed by the son of one family, and this girl was breastfed by the daughter of that same family. In other words, she was breastfed with the sister of the brother with whom I was breastfed?

Answer:
As long as she was breastfed by the same woman from whom you were breastfed, she is your sister, provided the breastfeeding is complete, meaning five times or more. If you were breastfed by the woman of Zaynab, and Fatimah was also breastfed by her, along with another boy and another girl, she becomes your sister, whether she was breastfed before you or after you, provided the breastfeeding is complete and full, five times or more, within the two-year period.