Man Lā Yaḥḍuruh al-Faqīh #1247"There is no harm if a woman performs tawaf without being circumcised. As for a man, he should not perform tawaf unless he is circumcised."
Al-Kāfi #982“Abu ‘Abd Allah (a.s.), has said, ‘It is not harmful if a woman who is not Makhfudah (circumcised) performs Tawaf, but a man must not...