Ali ibn Mahziyar narrated from Hammad ibn Isa, from Hariz, from Muhammad who said:
I (Narrator) asked Imam عليه السلام about a menstruating woman who breaks her fast during the days of her menstruation in the month of Ramadan, and then she dies. Imam عليه السلام said: "There is nothing upon her."
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 416