The waiting period of a divorced woman who menstruates but has not menstruated because she is breastfeeding her child, so she waits until menstruation comes to her, then she observes the waiting period of three menstrual cycles.

The Shaykh : Now, if she is a menstruating woman, but her menstruation has ceased because she is breastfeeding, and the prevailing custom is that a woman who is breastfeeding does not menstruate, then this man divorced his wife while she was in a state of purity in which he did not have intercourse with her, and she remained without menstruation for two years. What is her waiting period? Tell us with us, may Allah bless you. What is the waiting period of a menstruating woman? The woman who menstruates.
The student : Three

The Shaykh : Three menstrual cycles. Now, this man divorced his wife while she was breastfeeding, and the prevailing custom is that a woman who is breastfeeding does not menstruate. So he divorced her, and she remained for two years without menstruating. Does she remain in the waiting period for two years? Yes, she remains in the waiting period for two years until menstruation comes to her after she weans the child and menstruates three times.