A question regarding milk kinship between cousins

Question:
Our brother Sa'id Muhammad Hamud al-Yamani says: If two men become milk brothers and they are cousins, is it permissible for one of them to marry the sister of his milk brother?


Answer:
This requires a detailed explanation: If two men become milk brothers, with each one nursing from the other's mother, then the one who nursed from the other's mother considers her daughters to be his sisters. Her daughters are his sisters, and he is not permitted to marry any of them, provided that the nursing met the conditions. This means it occurred within the first two years and consisted of five feedings or more. If Zayd nursed from Fatimah five times or more while he was within the two-year period, then her daughters are his sisters, and he is not permitted to marry any of them.
Likewise, if one of her children nursed from the mother of the nursing man five times, then the sisters of the nursing man are not lawful for the one who nursed from his mother, because he has become their brother through milk kinship.
The point is that if the nursing man completes the nursing within the two years with five feedings, then the daughters of the nursing woman, from any husband, are his sisters. Likewise, the daughters of the man who provided the milk, from any wife, are his sisters, and he is not permitted to marry any of them. This is based on the saying of the Prophet (peace and blessings be upon him): . Yes.