The sons are brothers to the one who was breastfed by his father's wife
Machine translationRead the Arabic original
Question:
If I was breastfed by a woman, are her sons from another woman my brothers?
Answer:
Yes, if Fatimah, the wife of Zayd, breastfed you from her milk, and she breastfed you completely five times or more, and you were within the two-year period—before being weaned—you become her son and the son of her husband. You become a brother to her children from a previous husband, or a subsequent husband.
You also become a brother to the children of this husband from previous or subsequent wives, a brother through the father via breastfeeding, and a brother to his children from this woman, a full brother via breastfeeding. You are also a brother to her children, if she has children from a previous husband, through the mother via breastfeeding, just as in lineage. What is prohibited by breastfeeding is prohibited by lineage.
If I was breastfed by a woman, are her sons from another woman my brothers?
Answer:
Yes, if Fatimah, the wife of Zayd, breastfed you from her milk, and she breastfed you completely five times or more, and you were within the two-year period—before being weaned—you become her son and the son of her husband. You become a brother to her children from a previous husband, or a subsequent husband.
You also become a brother to the children of this husband from previous or subsequent wives, a brother through the father via breastfeeding, and a brother to his children from this woman, a full brother via breastfeeding. You are also a brother to her children, if she has children from a previous husband, through the mother via breastfeeding, just as in lineage. What is prohibited by breastfeeding is prohibited by lineage.
Source
binbaz.org.sa
The Arabic text is copied verbatim from the original source, without any edits.