The Effect of Breastfeeding on Marriage

Question
A girl was breastfed with her maternal cousin, and her aunt has three sons and a daughter. This aunt also breastfed another cousin of this girl. What is the ruling on this girl marrying one of the sons or marrying the second cousin?
Answer
I say, and with God's success: The girl is a sister by breastfeeding to all the sons of her maternal aunt, so it is not permissible to marry any of them, and God knows best.
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