I have a cousin whose parents died when she was young. My father brought her up in our house until she became of age.
I proposed to her but my father refused until I ask your Eminence about the ruling. Is it permissible for me to marry her? As for wet-nursing, she is not my milk sister at all.
(Part No. 18; Page No. 343)
If the matter is as mentioned, it will be permissible for you to marry her. Bringing her up in the house of your father does not prevent you from marrying her. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.