Is it permissible to marry the sister of the neighbor's daughter if the mother nursed the questioner and the neighbor's daughter in their infancy, given that the neighbor's daughter was three years old and the questioner was only a few days old?

"Suckling your neighbor's daughter after the age of suckling does not affect anything and does not make you her brother through suckling. If she suckled from your mother within the first two years of her life, then she is your sister and the sister of your siblings. Her other sisters are not related to you, and it is permissible for you to marry them. However, if you are the one who suckled from her mother, then all her brothers and sisters become your siblings through suckling. It is forbidden for you to marry her sister's daughter because she is your sister's daughter through suckling, even if her sister was old at the time of your suckling."