Many tablets revealed to the women have been lost.

In a tablet to Aqā Shāhzāda, Baha'ullah says he is addressing her from the prison in 'Akka with a call that is sweeter than sugar and more luminous than the sun and moon. Baha'ullah says that she has drunk the wine of revelation, and taken hold of his tablets and writings (Baha'ullah and 'Abdu'l- Baha 2005: 208). In another tablet to her, Baha'ullah likens his words to precious gems and pearls which were hidden and which he has now revealed for her. Elsewhere, Baha'ullah tells Shahanshāh Baygum that she has been mentioned at the throne ('arsh) of God, and that her name has been recorded in the tablets, and that he has revealed verses for her so that from them she might perceive the scent of the shirt of her Lord (a reference to the story of Joseph; ibid.: 205). It is impossible to know how many of the tablets originally revealed for these women have been lost. In a tablet to Diya' al-Ḥājjīya, Baha'ullah says she has repeatedly received divine verses (Ibid.: 219), and in a tablet to her from 'Abdu'l-Baha we read that she received many tablets (alvāḥ-i muta'addada) during the time of Baha'ullah (Ibid.: 294).

(The Baha'is of Iran: Socio-Historical Studies. (2012). United Kingdom: Taylor & Francis.)

https://www.google.com/books/edition/The_Baha_is_of_Iran/H4YrBgAAQBAJ