The Ruling on Breastfeeding from a Woman Whose Milk Has Stopped, and Marriage to a Paternal Cousin

Question:
My grandmother raised me when I was four months old. She fed me with formula, and when I cried, she would give me her breast to quiet me and calm me down. Please note that she is elderly, sixty years old, and has no milk. Her husband, my grandfather, passed away twenty years ago. The question is: Is it permissible for me to marry my paternal cousin, my father’s sister?

Answer:
Yes, if the grandmother did not breastfeed you, but only gave you formula, and only gave you her breast for distraction and amusement, and did not breastfeed you with milk, there is no harm, there is nothing wrong, it is permissible.
However, if she did breastfeed you—even if she is elderly—if she breastfed you completely, five times or more, she becomes your mother—if she is your father’s mother—she becomes your mother, and you become a brother to your father, a brother to your paternal uncles, and an uncle to their children. But as long as she did not breastfeed you, and only occupied you with her breast, distracting you while not breastfeeding you, there is no harm.