If a woman claims that she breastfed so-and-so, and the mother denies it, whose statement is accepted?

Question:
He says: Honorable Shaykh, may Allah grant you success. If two women disagree, and the first says, "I breastfed so-and-so," and the mother of the girl says, "No, you did not breastfeed her," is the statement of the wet nurse accepted?

Answer:
The one who affirms takes precedence over the one who denies, because the denial is possible, the denial is possible, whereas the one who affirms has additional knowledge.