The ruling on breastfeeding three times in one night

The questioner : The question is about the fourth [suckling].

The Shaykh : He says: I have a younger sister, and I was breastfed along with a girl by my mother for a full night. In that night, there were only three breastfeedings. Does this girl become my sister or not? This girl has a younger sister; is it permissible for me to marry her or not? Please inform us, may Allah reward you with good. First, it must be known that breastfeeding does not prohibit marriage unless it is five known times.
As Muslim narrated from the hadith of Aisha (may Allah be pleased with her), she said: She said: It was among what was revealed So breastfeeding does not have an effect if it is once, twice, three times, or four times. In the question, the breastfeeding was three times, and on this basis, it has no effect. It is permissible for you to marry even the girl who was breastfed by your mother, as long as she was not breastfed more than three times. However, if she was breastfed five times, then this girl becomes your sister and the sister of all your brothers from your father or your mother. As for her sisters, there is no relationship between you and them, so it is permissible for you to marry her younger sister who was not breastfed by your mother, and you were not breastfed by her mother.