1952 — Mark Zborowski & Elizabeth Herzog, Life Is with People: The Jewish Little-Town of Eastern Europe, International Universities Press (1952), page 326:
Her own child is the "milk sibling" of the one she has nursed.
1990 — Ruth C. Busch, Family Systems: Comparative Study of the Family, Peter Lang (1990), →ISBN, page 121:
The Koranic prohibition on marriage to a milk sibling is the cause of trouble in some cases.
1992 — Jane Khatib-Chahidi, "Milk Kinship in Shi'ite Islamic Iran", in The Anthropology of Breast-Feeding: Natural Law or Social Construct (ed. Vanessa Maher), Berg Publishers Limited (1995), →ISBN, page 112:
The parents of the children will exchange visits, favours and gifts; when the milk siblings grow up, they will be expected to be on close terms with each other throughout their adult life.
2004 — Rebecca Popenoe, Feeding Desire: Fatness, Beauty, and Sexuality Among a Saharan People, Routledge (2004), →ISBN, page 94:
But knowingly to marry someone who is a milk sibling is, as Sidi told me gravely, to go against Islam.
2009 — Ina May Guskin, Ina May's Guide to Breastfeeding, Bantam Books (2009), →ISBN, page 233:
This means that a young woman who would have to be veiled in the presence of any men outside her immediate family would not be required to wear the veil in the presence of a "milk sibling."
2012 — Leonore Davidoff, Thicker Than Water: Siblings and Their Relations, 1780-1920, Oxford University Press (2012), →ISBN, page 43:
The belief that a special relationship united babies breastfed by the same woman made them milk siblings. Their children, in turn, might regard their parents' milk sibling as an honorary aunt or uncle, […]