Are "Huda" and "Nawal" considered daughters of the wet nurse and sisters to her children, given that "Huda" was breastfed to satiation at one time without knowing the number of feedings, while "Nawal" was breastfed once and then given half a cup of the wet nurse's milk?

Scholars have differed regarding the amount of breastfeeding that establishes prohibition [of marriage], and the preponderant and fatwa (definition)-given opinion among us is five breastfeeds or more. This is based on what Aisha, may Allah be pleased with her, narrated: "Ten well-known breastfeeds establish prohibition" was abrogated by "five well-known ones." It is a condition for the five breastfeeds that satiation occurs, and the relied-upon definition of a single breastfeed is based on common understanding, which is when the child takes the breast into his mouth, sucks from it, and then leaves it, turning away from it. If he repeats this five times in one sitting, then the prohibiting breastfeeding is complete. The reference for knowing a breastfeed is common understanding; if the child breastfeeds and then voluntarily stops breastfeeding, that counts as one breastfeed. If the number of breastfeeds is confirmed to be five, then prohibition is established, based on the Prophet's (peace be upon him) saying: "What is prohibited by lineage is also prohibited by breastfeeding." If there is doubt about the completion of the number five, then it does not establish prohibition according to those who hold that it does. Based on this, the breastfeeding of the mentioned woman to the two girls (Nawal and Huda) does not establish prohibition, because Nawal only breastfed once, and the prohibiting amount is five breastfeeds. As for Huda, there is doubt about the completion of the number, and the default is non-completion. Since the considered number of breastfeeds has not been established, this woman is not considered their mother, nor are her children considered their siblings.